Putrid Service from Telkom

I have had an endless issue with absolutely no assistance from Kenilworth Centre's Telkom staff, nor from the Cancellations Department. Each time I go to the store, the Store Manager is on Leave or nowhere to be found & the 2nd in charge keeps telling me he will call me back & never calls me back with an update or any feedback whatsoever. After cancelling my contract & being informed to return the device in order to clear the balance owed (which was handed to Kenilworth Centre's Manager, Suleiman), the Cancellations Department Manager, Tozama, has up to date not cleared that balance owed. I have been debited month to month with amounts ranging between R2000 and R12 000 sometimes twice a month, even after handing the device back within 1 day of being informed to do so. This has been affecting my credit record tremendously & I would greatly appreciate it if SOMEBODY could actually assist me in getting this matter sorted. I have done my part months ago & I need somebody from Telkom to actually step up & take responsibility by assisting with this contract that was cancelled the beginning of this year already. I am extremely disappointed by all Telkom Staff, including Management.