TELKOM - COMPLETELY AND UTTERLY USELESS

The company that I work for has cancelled their services with Telkom over six months ago, yet we still get billed. We do NOT use them for landlines, as we use VOIP through a different company. We also do not use them as an ISP, yet we get billed. I have phoned them, I have sent the SAME email several times over, and every month it is the same problem. We get reassured that our contract has been terminated, but every month I end up phoning Telkom again, with the same complaints, forwarding the same email. This is the most ridiculous service I have ever received!!!