Telkom is Pathetic

Pathetic service from Telkom, I have a contract router since March/ April already I feel it is going to be a long 24months, it was okay until August, it connects sometimes but most of the time it doesn't. I have logged the query in August, they promised to get back to me after 72hrs and that turned out to almost two weeks and they promised to send a technician after 7days, it took another two weeks for a technician to come, the technician could not resolve my problem and I told the technician to write that on his report, after two weeks they called ask if my router is fine, I told them it was never fine but they advised that the technician didn't put that on the report, after a week another agent called asking the same question and I told him I did tell her colleague but she told me its not logged on the system I had to tell the story again. Every time they call they apologize and understand my frustration but dololo to resolve it. I paid my monthly installment but the router is still not working so I am buying data almost everyday but I do have unused data on my router. This month if it continues I am reversing the transaction we will then take it from there I had enough of you, your apology, your understanding and your bad service.