Absolutely Terrible service from Telkom!!!

Absolutely ridiculous service!!!! Telkom had created a duplicate ADSL line and keeps charging me for it. 4 Calls later and i'm still being charged and receiving summons letters from Telkom. I logged a call as soon as i got the letter which the call agent told me it would take 7 working days to get credited. Phoned in today, the 7th day, and now they tell me it takes 10 working days!!! When asked to speak to the supervisor i got told they don't resolve queries over R 7000 and that back office needs to resolve it. Added to this, the statement i requested has a device purchase. How can that be if i'm not even using the account???????