I was going to recommend Zen. I know plenty of techie mates of mine who use them. They've got a good reputation.
I use Andrews and Arnold, who are also very good - http://aaisp.net/ - however that comes at a cost, they aren't cheap. They are a UK based company (fairly small) so you'll get to talk to the same few folk if you do have cause to ring them up.
I'd keep a record of the BT calls, write down times, durations and what happened on the call. Get the names of everyone you've spoken to. If you think they're being dodgy, complain to ofcom:
http://consumers.ofcom.org.uk/complain/ ... omplaints/
I use Andrews and Arnold, who are also very good - http://aaisp.net/ - however that comes at a cost, they aren't cheap. They are a UK based company (fairly small) so you'll get to talk to the same few folk if you do have cause to ring them up.
I'd keep a record of the BT calls, write down times, durations and what happened on the call. Get the names of everyone you've spoken to. If you think they're being dodgy, complain to ofcom:
http://consumers.ofcom.org.uk/complain/ ... omplaints/