Who is your ISP? (internet service provider)

If that's their approach then find another ISP (wait till your contract completes.) If no options, then the best would be to use proxies. But you need to search long & hard for numbers that work. And even may need to change from time to time afaik. A Fix for those whose ISP's block Limewire pages 1 - 3 which have links to alternative instructions. eg: Tor is supposed to be a good one. But there's many others.

(Edit: This is the 2nd thread in a row birdy has beaten me to an answer within 2 mins. of posting.)