Payment via Wallet issue

Customers having issues while paying through wallet.
If product price is 899 and wallet balance is 899 customer is not able to pay. On selecting Pay by wallet option the payment methods refresh automatically and select next available payment option.
But if wallet balance is 900 and product price is 899 then transaction is successful.

Screenshot- https://drive.google.com/file/d/1fMxg8GNKddsoNuVasPuB_YG44roMoGHX/view?usp=sharing

In the screenshot, you can see there is a discount code applied for ?50 for prepaid order. I have disabled the code for payments via wallet. Tried disabling the discount plugin also. Still same issue.
NEED HELP