Topcashback

Anyone got any experience of signing up with bt via topcashback ?

I'm looking at infinity(38mb) with tv at £40 a month, topcashback say £210 cashback which cuts this to around £25 a month, this price difference is significant imho, and am worried about not getting the cashback

I'll be moving from plusnet if that makes any difference

took the plunge and ordered, it's now showing as pending for full amount