1. Check the payment method: confirm whether the credit card or debit card used has expired, whether the balance is sufficient, or whether there are other problems. Need to update the payment information, go to the account section of GooglePlay Store to modify it.

2. Contact the issuing bank: There is no problem with the credit card or debit card, and the bank temporarily restricts online transactions for security reasons. Need to contact the bank to solve the problem.

3. Contact Google Support Team: Contact GooglePlay Support Team for help and guidance. Contact by email or telephone.