Really?!?

In December my line was down, I contacted the help desk and they sent out a tech to come and have a look, soo the tech said my router was faulty and I was billed for an unnececcary call out. Which is absolutely Ludacris as how am i to know my router is faulty and not my line? do I work for Telkom? My router powers on but the ADSL port is faulty, Most probably blown by a surge on the Telkom line.... anyways so I payed the bill... normally 770.01 and they billed me 1029.08. even though the exchange is 2 minutes drive from my home. Today I got another bill for 1029.08 again??? When was a tech at my house again? did he jump over my fence and work on the line while I was sleeping? did I call the help line in my sleep and log a fault? or did they see now that I payed that insane amount once they will try and nail me every month? And I was getting good service from them for monthes.... shows you every good thing must come to an end..