post https://scl-sandbox.dev.clover.com/scl/v1/balance_inquiry
Displays the current balance of an existing virtual gift card:
If a currency code is specified, the current balance displays in that currency and the base currency if they are different.
If no currency code is specified, the current balance displays in the base currency.
<!--DS-7160: Hide this ednpoint as suggested by SME (Ipsita Hota)-->