It's really easy to top up with Flip.
Simply login to My Account and visit the Top Up section.
When topping up, this will use your chosen payment method (Direct Debit or Credit Card).
You can also do one-off Credit Card top ups by scrolling to the bottom of the page.
Click My Account on the Flip website.
Login with your account email address and password - the ones you chose when joining us unless you've changed them.
Click on the Top Up section.
Choose how much you'd like to top up and hit confirm. This will automatically deduct the amount you select from your payment method with Flip.
You can also complete a one-off top up by Credit Card - just scroll further down the page.