Never insure with Vodacom

I had a terrible experience when trying to claim from vodacom after my phone was ******. I have been a customer at Vodacom for years, when my laptop contract was due for an upgrade I opted to get a mobile device, an Iphone 8 and added insurance on it. My phone was ****** a few days ago, I went to Vodacom with the ICT number and everything needed for the claim but it was rejected because I was using a different sim card. This was never explained to me when I took the upgrade for a phone or even when I opted for insurance that I would be forced to use a Vodacom simcard just to ensure a device. I have been paying insurance for the past two years but now they refuse to pay up.