Mtn Sim swap/ poor service

I lost my Sim card last year on 01-09-14, called mtn for a Sim swap and I was advised to send an affidavit and a copy of my ID to mtn because I could not remember the security questions. On the 02-03-15 I sent the documents to mtn. Called them the following day they told me the number has been recycled (and the women was not very nice). I called again on 07-03-15 and I was told that I should do a second affidavit because the 1st one was only stating that the Sim was lost and how it was lost whereas it should have stated the old number, new number and that I want a Sim swap. On the 08-03-15 I sent another affidavit to mtn. Just a few minutes ago called mtn and I spoke this other rude guy who told me that the number has been recycled and that there is no record of the call I did on the 07-03-15 when I was told to send another affidavit so that the Sim swap can be done. <br> I'm angry because I need that number for business and I'm disappointed by the poor service from mtn.