PATHETIC SERVICE VODACOM

I have a home internet contract with VODACOM. Has stopped working suddenly. Trying for 3 weeks to resolve the problem with soo many calls to customer care and contract cancellations department without success. The question is do I block the debt order because no service rendered and I suggested a mutual agreement we cancel this contract with no penalties and we go our separate ways. It's the ant fighting the elephant. My matter is not urgent. I can wait forever! No rush but I must still pay.