Update Virtual Account.
- [FIXED] Update virtual account creation call.
- [FIXED] Code clean-up
Updated payment methods.
- [FIXED] Update "Pay with Bank (NG)" endpoint.
- [ADDED] eNaira payment method.
- [ADDED] Pay with Bank Transfer payment method.
- [ADDED] Tanzania mobile money payment method.
- [ADDED] Support for EUR and GBP on pay with Bank method.