POOR TELKOM SERVICE

Ive been trying to get hold of telkom regarding a telkom bill of R7000 that was forwarded to me. I have already settle my account for DECEMBER AND JANUARY after they have double debited me in December. They are now saying I owe R7000 and im trying to get through to the billing department to have them fix this issue. At this point my lines have been suspended and im losing business because clients are unable to get hold. Im on the verge of opening up a case against them because they still havent corrected my balances and im unable to get through to them. Im annoyed and really ****ed off at this point.