Faulty router for the SECOND time in 4 months

I took up a broadband contract with Telkom in November 2015 - within the first 3 weeks my router was faulty - went in for repairs - got another one on the 29th of December. On the morning of the 1st of March 2016 - the 2nd router was off - only power light was on. NO SERVICE. I went to Telkom Mall @ Reds on the 2nd of March - sat in the queue for 35 minutes - just to hear that they have no technicians on site and I need to go to Telkom Centurion Mall. Once again - I'm paying for data that I don't have. Can they PLEASE review their devices, because SURELY there is something wrong. Can someone PLEASE assist - This is totally unacceptable ! If this is the way forward ..... to have a faulty router every 2-3 months - I need to cancel my contract. !