What does the error above mean?
This error means that the transaction will bring your bank balance below the limit set by your bank or you have exceeded your transaction limit for the day.
What can you do about it?
You need to reach out to your bank to find out what your minimum account balance can be or to increase your limit.
In the interim, you can save via bank transfers. Please follow these steps to do this;
Go to the said Plan
Click on top-up
Enter the amount, then on the payment method click switch and select bank transfer.
A temporary account number will be generated for you.
Proceed to make payment to the account number immediately as it expires after 20 minutes.