1. In order to pay for a transaction with funds in your currency wallet, go to Currency exchange and click Transaction history.
2. On your list of transfers, locate the transaction you wish to pay for and click on it. The transaction should be pending.
3. Click the option Pay with currency wallet in the top-right corner.
4. Click the button Pay with currency wallet in the bottom-right corner, located under the information regarding your transfer.
5. The transaction has been paid for.