Although they taking a knocking on the forums these days, I have been with Pipex for some time (long before they were bought by Tiscali), and have been pretty satisfied with the quality of my connection, if not their customer service. A couple of years ago, I also paid to put mum on Pipex, so I had broadband when I was visiting her (of course, she used it as well!).
As we are selling the house, and I am not going to be back there much now, I cancelled her account at the beginning of October. I was told it would take 30 days for the account to be closed, so when I saw a payment go through in October, I did a mental shrug.