Gas meter

Hello everyone, brand new to bulb and was wondering…i signed up to bulb on dual fuel (gas and electric) but didn’t think to mention that our gas meter is a prepaid old one and not a smart meter and was wondering thag now i realise that i still have to top up my gas meter manually and by card so would my direct debit bill go down since im not directly paying for my gas anymore? And if so does that mean ill get a refund from the original amount? And would it revert back to just electricity and just pay for that? Sorry if i haven’t explained clearly, would appreciate the help. Thank you :slight_smile: