Pre payment meter

Hi I am looking to change my gas and electric to bulb. I am on pre payment meters card for gas. Key for electric. On looking where asks how u pay it only shows direct debit or a computer for online. What should I do for pre payment. Thank u

The options shown are “Both by direct debit” and “One or both by top-up”. Look at the text not the confusing little cartoon icon.

You should select “One or both by top-up” since you have prepayment meters that you top-up.