Step 1: Once you open the BitOasis application, click on the ‘Lite’ button which can be seen under, as seen in the screenshot below. 

Step 2: Select a pair from the drop-down menu, enter the amount you would like to buy and click on the ‘BUY’ button. 

Note: You should have enough balance in your BitOasis account to complete the transaction

Step 3: Your transaction will be complete.

Note: You can view the steps for buying cryptocurrencies on BitOasis Lite by clicking here, and on BitOasis Pro by clicking here