Requested a contract cell number

It's been weeks, even wrote to their so called Premier 24 hour service but I'm not getting any assistance. I took a contract with them, I lost the sim card, When I called the call centre, I was told to take my ID to any Cell C stores they will assist, I did that but Cell C told me they can't help coz they the 3rd party I must go back to FNB. Only thing I wanted was the card number. I wasn't using this card on daily basis.<br> <br> It's really annoying to be on the line for more than 20 \min and not get any help. "