TELKOM UNCAPABLE OF RESOLVING A BILLING DISPUTE

We have been trying to resolve an account dispute for the last 18 months.My reference number ********** 9. Every time I phone I am being told that it is being escalated. Telkom owes us about R 8000. 00 and yet they still suspended our services.I have just been informed that the dispute has not even been attended to .Apparently Clint Kelsey ,manager, was supposed to resolve this issue but it was never done. Again it was being escalated to a supervisor. What are we suppose to do? Continue paying Telkom whilst they clearly have no idea how to resolve a mess that they have caused in the first place?