Worst customer service

Admyntec is the worst insurance company that one can deal with. I submitted my claim to Admyntec insurance company on the 30/03/2020.On the the 31/03/2020 I got a response from one of their consultant by the name Sakhile, informing me that the IMEI number on the claim form doesn't correspond with the one they have on the system. I need to advice if whether there was a replacement or they require proof to update the policy. I was never informed about the change of administrators, I only got that when I asked him on the email that they replacement me with the same model different IMEI number.I have been calling the call center to speak to one of their team leader but they don't want to put me through. Its now the 5th of May. *Why didn't Mtn inform me that they are changing administrators and I should update my policy accordingly? *Why didn't the previous administrator do, the hand over to the new administrator * How long does a client need to wait for their underwriters to provide feedback *Why cant consultant put a client through to their team leader