Connectivity again?!

We've had so many issues with our ADSL. It was down for 2 weeks before we finally got a technician out to repair it. We then upgraded to 4Mbps which worked for all of a week and now its been down for 3 days again. Even when 'escalated' we receive no response. We're paying an exorbitant amount of money and not receiving proper service at all. I don't suppose we can claim back our money for all the time our service had been down? That might at least get their butts in gear.