You can make a purchase using MovoCash (your primary card) by visiting:
My MOVO >> Accounts >> View Card (this will give you a visual of the Primary Card available for you in the app). Use this card number, expiration date and CVV to make purchases directly from your MovoCash balance (vs. from a MovoCoin balance).
The virtual card can be used for online purchases. Or, in-store purchases by requesting the merchant perform a "manual entry."