Internet down for 4 weeks

My phone line has been down for 3 weeks. I received a call to test my landline after 3 weeks. I queried my internet which was still down and was told to restart the modem and check cabling. This, I don't believe was the solution. It is now 4 weeks and I'm paying for a internet service I'm not using. On the fault logging - my status shows as pending. I don't think anything is being resolved. I receive sms's from time to time saying that my issue is being looked at. I need this sorted out asap