I'm currently in more or less the same situation as you, although my GP said that Lyme doesn't exist in the UK
If your an NHS patient the Westernblot test is avaiable through them but the protocol, if you can find a doctor willing to test you in the first place is for you to have the Alisa test first, then you would need to put pressure on them and hope that they give you the Westernblot which will be done through a lab in Scotland, alternatively its a case of going to see a private LLMD and getting them to do the test for you and sending it out to Igenex, from what I've learned so far the cost for this is around £600 for the test plus the consultation fee, if you go the second route from that point forward its all private, if you do actually get a result through the NHS then you'll probably get a 2 week course of antibiotics as standard then struggle to get more, I've got some details of LLMD'S and the NHS lab, if you need them give me a shout, Andy