What has Telkom done with my landline?

So after moving my landline from the old address to my new address, it was not a week later that the line got suspended. We phone and they said that there was any outstanding amount because when the line was originally suspended to move it, it was done after the last billing and there was a R200 outstanding. Fine. We paid and then they cancelled the line. How do we know it is cancelled? Because when you put in the telephone number it says it is an invalid number. When you phone the Call Centre to find out the problem and you enter your number, the voice recording says your line is suspended, then Goodbye! So you cannot even get through to fix it and the walk-in branches don't do that kind of service. We have spend R300 in airtime trying to get through and when you do get through, you hold and hold- \we are experiencing high call volumes\". Ever wondered why? Does it possibly have something to do with your service?"