Internet down 2nd time, more than 10 days

My internet/ADSL line has been down for more than 10 days. Reported initial fault, then got SMS last week Friday to say it has been restored, which it wasn't. Reported again, technician came out and said our router was out of order. Bought a new Telkom router and after installation, still no joy. Had line tested, STILL down! This is a business line and costing me additional to purchase data without getting compensated for lost Telkom data during down time. Please just sort this line? This is now the second time this year that it has been down for more than 10 days at a time.