MTN SUCKS and highly unprofessional

I APP**** FOR AN UPGRADE TELEPHONICALLY, MY FONE WAS DELIVERED. I THEN APP**** FOR INSURANCE, I WAS PROMISED TO BE CONTACTED IN 5 DAYS. ITS WEEKS LATER AND MY DEVICE HAS BEEN ******. I HAVE FOLLOWED NECESSARY STEPS INCLUDING OPENNING A CASE. AFTER MANY ATTEMPTS TRYING TO REACH THEIR CALL CENTER I WROTE THEM AN EMAIL, A VERY IMMATURE FEEDBACK I RECEIVED WAS MY CLAIM APPLICATION IS UNSUCCESSFUL BECAUSE THE MSISDN ALLOCATED TO MY IPHONE 6(LOST DEVICE) IS BEING USED BY ANOTHER DEVICE. MTN I HAD TO MOVE ON WITH LIFE AND DO A SIM SWAP, SOMETHING YOU'VE NEVER HEARD OF IM SURE. IVE TRIED CALLING, AND AGAIN I CANT GET THROUGH, IS THIS A MICKEY MOUSE SHOW OR WHAT? IF MTN FORENSICS OR CALL CENTER EXISTS, CAN SOMEBODY CALL ME BACK PLEASE <br> <br> JUST TO GIVE YOU ANOTHER FACT, WHEN MY FONE WAS ******, IT HAD AND WAS USING THE MTN SIM CARD THAT I REGISTERED WITH.