That should be of course be 76/20 (AKA 80/20). I believe the whole sale cost of 55/10 is an extra £1.50, so a boost price of £2 would give TT a fair margin.
Partially, but I would also like to to see a boost that offered a little more download too. This could be either that TalkTalk make 55/10 the entry-level speed, as BT have done, or it is offered as a midrange boost for those that don't need, or cannot achieve the full 76/20 speed boost.
@ITTroll We've discussed this with our products team and unfortunately this isn't something that we're looking to deliver in the near future, but thanks a lot for your suggestion and keep them coming.