The common reasons for payment errors are the type of card used, insufficient funds, and banks not allowing the transaction.
Here are some workarounds to address the issue:
1. Use a Visa, Mastercard, or AMEX card. Other types of cards are not accepted currently.
2. Try a different card or use PayPal, if available.
3. Call your bank if the transaction is not allowed, or if there are any international restrictions with the purchase.
4. Switch to a laptop/desktop device, use Google Chrome as your browser, then reattempt the purchase.
5. For monthly subscriptions, kindly check with your bank if the option is available with your card.
If you're still having difficulty completing the purchase, you may submit a ticket here:
Helpdesk and one of our Support Specialists will be there to assist you.