My fixed-rate contract comes to an end next month, and I’m now in the ‘renewal window.’ I’m trying to find out how much more I’ll have to pay when I’m transferred to a simple variable tariff. The rates I see at two pages at ovoenergy.com are different, by about £60 a year in my case.
Can I be certain that if I follow the advice on the renewal page and “pick this plan today to enjoy these prices” I will in fact be billed at the rates offered?
Here are the screenshots:

