How can I use this cash on Curve?

Can anyone help me guys?

Assuming you mean Curve Cash, have a look here:

Spending with my Curve Cash card

You can spend your Curve Cash straight away at any physical or online shop, exactly as you would with any other card in your Curve Wallet.

Depending on your bank, you can even top up your supported prepaid cards or pay off your credit card statements using your Curve Cash. The only difference is ATM transactions, as you won’t be able to make withdrawals.

To use your Curve Cash, select your Curve Cash card as your active payment method before you make your purchase. Make sure that you have enough points to cover your entire purchase, otherwise, it’ll be declined.

We’ve also introduced a feature that allows you to automatically pay with Curve Cash for any purchase without having to manually select Curve Cash. You can read more about it here.