Been Suspended And They Refuse To Reconnect

I am 2 months into the LTE 50gb plan for R699 a month and i was suspended cause they say that i owe R2790???<br> They Admitted to me it was a billing error on the 4th of October and they garenteed me that i would be online by the time i got home.<br> I have not been on for the whole month and i have been in to the branch (DURING WORK TIME) 7 more times and they keep promising me stuff that has not been kept to.<br> I am going into the branch to cancel my contract as soon as i have time as this is by far the most disgusting service that i have ever recieved.<br> I have grown to hate everything about Telkom and i have already turned many people away from useing them cause of my situation