I have just received my renewal E-Mail and it's offering me £32.91 for 24 months minus £2.00 if i take the offer. Yet when i check out the web site it offers new customers £29.99 for 24 months.
They've probably added on the annual percentage increase in charges to you as an existing customer in march 2021 and to attract more customers start them from the lower base knowing that once they've got them as a new customer they can increase their charges in march 2022 on their 24 month contract. Swings an Roundabouts.