Hey all i have just signed up to talk talk after searching many sites showing speeds i can get is from 0.05mb to 3.5mb, i did a check on talk talks website and it says they can offer me 21.1mb and cant understand why talk talk can offer this but cant understand why other isp's can offer this. Im in longley and i think my exchange is Attercliffe, just wondered if anyone else is on talk talk at this exchange or any other and what there service is like and with their speed boost service which i have ordered too

Many Thanks