Mtn

I recently received a call from SSDA Attorneys informing me that I owe MTN R21000, this was apparently from 2 numbers that are under my name since 2011, I informed SSDA that i do not know of these numbers and the only contract i took with MTN (through Autopage Cellular) started in June/July 2012, I have sent proof of this contract to SSDA and placed a report on the MTN website and I have received no response. When I called SSDA to find out the status, I was constantly accused and the response was rude, it's frustrating to be a victim of and on top of that to be treated as if you did commit this crime... and it is taking too long to sort this issue out.