16-08-2019 03:56 PM
You can move up to the next tariff yes but you will have to pay what it states per month.
You won't be able to move back down again though.
16-08-2019 06:29 PM
@TJL1 It’s usually an increase of around £5 to go to the next tariff up, and you’ll only be able to go back to your original price point once you’ve completed half of your contract term.