If your Paypal payment for your premium account fails, first log onto Paypal Website and check the following details.
1. Your registered credit card number and account number information
2. The expiration date of your registered credit card
The Paypal payment will fail if either of these are incorrect, so please make sure they are accurate.
For details, refer to the following link.
How to check payment status (Paypal Website)
Why did the withdrawal to my bank account fail? (Paypal Website)