What should you check first?
- Check the account's identity-verification and restriction notices.
- Confirm that the payment method name matches your account name.
- Check for an unpaid balance or a bank disruption before attempting another purchase.
When should you stop?
A pending bank entry is not proof that an order completed. Do not keep submitting duplicate orders.
When should you contact support?
Contact your bank for its decline reason, or use Coinbase's official support for account restrictions. Record the order status and time, without sharing card details here.
Use the help centre linked from the exchange's official website. CoinBBank cannot access your account, approve a payment or recover a transfer.
Official sources
This is a documentation-based checklist, not a diagnosis of your account or a record of a firsthand purchase test.