Paperpal is an AI writing and editing assistant aimed at academic and research writers. If you want to move from the free tier to a paid plan, you pay for it with a card at checkout. This guide explains how to set up a Coinepay virtual card, subscribe to Paperpal, and what to check if a payment is declined. It is an independent help article and is not affiliated with Paperpal or its parent, Cactus Communications.
What you need before you start
- A verified Coinepay account. Register and complete identity verification (KYC) first, because card services are only available after KYC. You can start at the Coinepay sign-up page or in the app for iOS or Android.
- A Coinepay virtual card. Once issued, you get the card number, expiry date and CVV instantly in your dashboard.
- Enough balance on the card to cover the plan you choose plus any local taxes added at checkout.
- Your real billing details, including the ZIP or postal code tied to the card. Paperpal's payment screen expects the code to match the card's billing address.
- A Paperpal account. You can create one through Paperpal's Editage sign-up or with Google; the free account requires no card.
Paperpal says it accepts credit, debit and prepaid cards through Stripe globally, and additionally lists UPI via Razorpay in India and WeChat Pay in China. PayPal and bank transfer are not supported for ordinary checkout. Services related to virtual assets are not available to residents of mainland China, and some Coinepay services are not available in every jurisdiction, so confirm availability in your region before you begin.
Paperpal plans and prices
Paperpal lists three individual tiers for new purchases: Free, Paperpal Prime and Paperpal Pro. (Prime Classic is a name kept for some earlier Prime subscribers, not a tier you can buy.) At the time of writing (October 2026), the Help Center US-dollar prices were:
| Plan | Monthly | Annual |
|---|---|---|
| Free | $0 | $0 |
| Prime | $25 | $144 (about $12/month) |
| Pro | $59 | $348 (about $29/month) |
The annual equivalents shown in brackets are not the amount you pay each month; the annual plan is billed as a single charge. Paperpal says it bills in local currencies in some markets, so your checkout total may be quoted in your own currency rather than US dollars. Prices and available terms can change, so always confirm the current figure on Paperpal's official pricing page before you pay. Group and institutional arrangements are handled by enquiry.
Step-by-step: subscribe and pay
- Issue your Coinepay virtual card. In the Coinepay dashboard or app, create a card and note the number, expiry and CVV. Make sure the balance covers the Paperpal plan and any tax.
- Create or sign in to Paperpal. Use "Get Started" to open the Editage sign-up, or sign in with Google. A free account lets you explore before you commit.
- Choose your tier and billing term. Select Prime or Pro and decide between monthly and annual before you reach the payment screen.
- Apply a discount code if you have one. Discount codes are entered at checkout, not beforehand, so look for the promo-code field on the payment page.
- Enter your card details. Type the Coinepay card number, expiry and CVV. In the ZIP or postal code field, enter the code that matches your card's billing address.
- Complete any 3-D Secure step. If an authentication prompt appears, approve it in the Coinepay app or follow the verification method shown.
- Confirm and check your receipt. After payment, your plan should activate. You can see status and renewal details under Membership & Billing once you are signed in.
Managing billing after you subscribe
Signed in, open Membership & Billing to view your subscription status, renewal date and billing information. Billing details can be updated at Paperpal's Editage billing portal (billing.editage.com). Ordinary Prime and Pro subscriptions renew automatically unless you cancel before the renewal date, so if you prefer to pay manually each term, set a reminder. (China's one-time plans and Japan's institutional Pay Later plans do not auto-renew.) Keep enough balance on your Coinepay card ahead of any renewal date to avoid a failed charge.
Troubleshooting: why a card payment can be declined
Card declines usually come from the card issuer or the payment processor rather than from Paperpal itself. Work through these common causes:
Insufficient balance
If your card balance does not cover the plan price plus any tax, the charge fails. Top up the card in Coinepay, then retry. For annual plans, remember the full year is charged at once, not the monthly-equivalent figure.
Billing address or ZIP mismatch
Paperpal's payment screen checks the ZIP or postal code against the card's billing address. Enter the code registered to your Coinepay card exactly. A mismatch here is a frequent reason for a decline.
3-D Secure / authentication required
Stripe-processed payments can require an authentication step. If the transaction asks for verification and it is not completed, it is declined. Make sure you can receive and approve the prompt in your Coinepay app, then try again.
Incorrect or expired card details
Double-check the number, expiry date and CVV. If you created a new card or the old one expired, use the current details from your Coinepay dashboard.
Card type or region checks
Paperpal says it accepts credit, debit and prepaid cards through Stripe, but whether a specific card brand is accepted in every market today is not guaranteed, and acceptance ultimately depends on the processor. If your card is repeatedly declined and the details are correct, contact Coinepay support to confirm your card is suitable for this merchant before you try again, and check with Paperpal support about any regional restriction. Use your real identity and real billing details—do not attempt to work around a region or payment check.
If a charge fails but money is held, a temporary authorization usually clears on its own. Check your Coinepay transaction history and contact Coinepay support if anything looks wrong.
Cancellation and refunds
To stop the next charge, cancel through Membership & Billing before the renewal date; cancellation normally leaves your access in place until the current term ends, after which the account returns to Free. Refund eligibility applies only to a first subscription purchase under Paperpal's stated policy: cancel within 7 days for a monthly (or existing quarterly) term, or within 30 days for an annual or multiyear term. Renewals, later purchases and unused partial terms are not refundable. Separate rules apply in China (one-time purchase, 30-day refund window) and for Japan's institutional Pay Later. Pause/resume is not available in India and South Korea. Always read the current terms on Paperpal's site, since policies can change.
Get help
For card, balance or verification questions, reach Coinepay through the support page or Telegram. For plan, billing-portal or refund questions, use Paperpal's own Help Center. Keeping your Coinepay card funded and your billing details accurate is the simplest way to make Paperpal checkout and renewals go smoothly.
Get your Coinepay virtual card: Sign up · App Store · Google Play · Customer support
FAQ
Which payment methods does Paperpal accept?
Paperpal says it accepts credit, debit and prepaid cards through Stripe globally, plus UPI via Razorpay in India and WeChat Pay in China. PayPal and bank transfer are not supported for ordinary checkout.
What should I enter in the ZIP code field at checkout?
Enter the ZIP or postal code that matches your card's billing address. Paperpal's payment screen checks this code, and a mismatch is a common reason for a declined payment.
How much does Paperpal cost?
At the time of writing (October 2026), the Help Center listed Prime at $25 monthly or $144 annually, and Pro at $59 monthly or $348 annually, with a Free tier at $0. Prices and currencies vary by region, so confirm on Paperpal's official pricing page.
Will my Paperpal subscription renew automatically?
Ordinary Prime and Pro subscriptions renew automatically unless you cancel before the renewal date under Membership & Billing. China's one-time plans and Japan's institutional Pay Later plans do not auto-renew. Keep enough balance on your Coinepay card before any renewal.
My Coinepay card was declined on Paperpal. What can I do?
Check for insufficient balance, a ZIP mismatch, an unfinished 3-D Secure prompt, or incorrect card details. If the details are correct and it still fails, contact Coinepay support to confirm your card is suitable for this merchant and check any regional restriction with Paperpal.
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