Incorrect Billing once again

Once again I am struggling to sort out my billing with Telkom, I just spend an hour and 45 min on the phone trying to sort it out. Billing tells me I have exceeded my credit, but my account shows a bill for Jan almost 3 x the correct amount. <br> <br> So Sales tell me I am been overcharged, Billings tells me to speak sales because they dont know, my account is actually up to date but my service is suspended because my end of Jan incorrect account exceeds my credit.<br> <br> What *******, and I am still waiting to get this resolved.<br> <br> Also not to leave out I only find out about the credit limit issues after my account were supposed to be re-activated and queried why after a payment that was told to me what amount.