@exBT2, it's no different from the method used by all utility companies - your new tariff applies from the day you renew.
Billing adjustments show on the next bill, so you don't lose any "service". If you worry about it costing more, leave it later to renew.
Sometimes the deal is actually better than the old one, so you benefit if the renewal starts up sooner anyway.
Insurance companies start from the expiry date for renewal, as do subscriptions. That's a totally different sort of cover that's being paid for in advance.
Talktalk has always used this method, and so will your gas/electricity supplier. It covers any potential changes in the type of packages.
Renewing online, you need to take time to read the Ts&Cs yourself, whereas the core of the contract is read out when you phone in to make you immediately aware.
You also have a cooling off period of 14 days, during which you can revert to the previous contract if you change your mind.
You won't get anywhere with trading standards on this matter.
If you need further help please start your own thread.
I am re-escalating this one for the OP, as @GerryMac's voucher needs chasing up.
Gliwmaeden2, a fellow customer.
