Waiting over 24 hours to get a sim swop done!!

On Friday, I called 173 to perform a sim swop and was told I answered the questions wrong (which is untrue) and therefore required to write an affidavit requesting my old number back. I did so and faxed both the affidavit and certified ID to *** and ***. It has been 2 days and have heard nothing from them!!! When I call the call centre I'm told that the query is being mailed to the supervisor which I am not sure of because it was the 2nd time I am logging this complaint and I've been getting told the same thing over and over again. I'm also told the supervisor would call me of which I'm still waiting to be called. Your so called \service champions"are not helpful at all! They cannot tell me whether my documents are received or not yet they say the fax numbers are monitored 24/7"