Angree and dissapointed customer, disgusted at service provided

I cancelled a product within the coolong off period the 12th of July 2017. Up until now no response and cancelation is being escalated for the past 6 months already, you guys keep billing me each month saying theres nothing you can do i must wait, managers keep informing me it will be resolved in 48 working hours! For 6 months no call back from telkom mean while i am getting a bad credit record for not paying i cancelled and all you can say is sorry you have to wait theres nothing you can do !!! Im disgusted at this service you guys are giving me a bad credit record i have been waiting for 6 months and still now nothing has been resolved! I have to call back twice a week to ask everytime and the same thing on every call im yired i want this thing resolved and i want my name cleared by the credit association ??????????i have provided proof evrytime of cancelation i have tried everythjng to communicate to you guys to get this solved and still nothing has been done i deposit the money for my cell phone and insurance every month but i refuse to pay for a wifi i cancelled within cooling off period i want thi wifi off my name ???????