Getting a payment failure when subscribing to Claude Pro? Credit card declines and billing address errors are common pain points. Many users get stuck on the "We couldn't process your payment" message—but in most cases, it's either your bank's fraud prevention or a simple input mistake. Don't give up yet. The steps below will help you sort it out quickly.
Step 1: Double-Check Your Credit Card Info & Billing Address
Claude Pro requires your payment details to exactly match what your bank has on file: card number, expiration date, and CVC code must be error-free. Pay special attention to the billing address—many users enter their real local address, but bank risk models often flag cross-border transactions as suspicious. We recommend entering the billing address exactly as your card issuer has it in English format (pinyin works for most Chinese banks), and don't forget the postal code.
If you're using a virtual card, make sure the available balance is greater than the subscription amount ($20/month). Some prepaid cards get declined simply due to insufficient funds, and Claude Pro won't tell you the exact reason.
Step 2: Contact Your Bank to Lift the Fraud Block
Banks typically have automatic blocks on international online transactions. After a payment failure, call the customer service number on the back of your card and say: "I need to authorize a $20 charge from Anthropic in the United States." Ask them to remove the single-transaction limit or add the merchant to a whitelist. Most banks can resolve this within 3 minutes, and then you can retry the subscription.
Also note: Claude Pro currently only supports Visa, Mastercard, and American Express—UnionPay cards won't work. Some virtual card platforms (e.g., Depay) occasionally get rejected by Anthropic's system, so try a different card from another issuer.
