Bad sevice and bad attitude when we complain

I called telkom regarding my internet completely not working. They assigned a technician to me that didnt pitch for three weeks. During the 3 weeks i Kept on calling to hear feedback they kept on reassigning me to a new technician. After ive lost hope the technician arrived and he fixed the problem. Right after that was sorted the account for the month this internet was not working account was paid. I called telkom relating to this Billing problem the internet not working whilst it was paid.They said yes they will investigate after 10 days they will let me know. its 3 weeks now and still we havnt heard from them. What irritates me the most is they so quik to send statements instead of them giving us our moneys worth and assisting us if their network is not working. And these call centre people have bad attitude!!!!!