Unfair Treatment

I request assistance on my claim with Vodacom, I had an iPhone 8 Plus and it got damage and it got replaced by an Huawei P40. then last year May I was due for an early upgrade and upgraded to an iPhone 11 Pro Max, two weeks ago it fell & the screen broke. when I took it for repairs, Vodacom claimed that its the second time am claiming for the iPhone 11Pro Max and I disputed that and when they realized that they were on the wrong they came back saying they never insured that iPhone 11 Pro Max, only the Huawei P40 was insured currently am struggling as I don't have phone and its Vodacom fault as I specifically told them to insure the iPhone 11 pro max. I've been calling Vodacom Insurance and i have been getting the run around and no solution to the matter