Hi Mallory,
I would strongly recommend posting this on the TT members forum as you will actually get to deal with someone in the UK and not have to put up with waiting on the phone for ages. I sorted out all the problems from my post above and got a refund for a lot of overcharges. Two months of pain boiled down to a few posts on a forum and then they were sorted. I'm still with TT as I couldn't get them to let me go without paying the cancellation fee, but since the initial problems I've had none at all.
Good luck!
Ben