Cell Phone Claim with MTN

I claimed for my lost phone on the 5/12/2019 and on the 10th i called in for an update and was advised that the claim was not processed. the agent at that time assisted me will i am on the phone with him to load the claim. i have called many times after that with agents dropping the phone in my ear, rude like i owe them a salary, My claim was declined on the 19/12/2019. the reason is that the insured number was not in the phone of which was as i even needed to go and do a sim swap for my 083 number (which is the same number on the application form and the same number on the Policy Schedule and the same number i have been using since 2005. I called Buyisiwe (Technical Claims Executive at Guardrisk) and she advised that they sent her the usage for an 078 number. first of all no one mentioned an 078 number the claim form stated 083, all doc's ever sent to yall was 083. i have been asking Admyntec to call me and to date ever since the 10th no calls, every time i call in to sort this out the call gets dropped in my ear or the team leaders are in meetings, Yall need to understand we all worked in call centres and we all know the tricks when the team leaders don't wanna handle clients, again i would like someone to call me preferably a team leader or a manager.