Lost cellphone claim

I have contract with Vodacom since from 2019 and lost my phone This January 2022. I have cellphone contract with them, now I have reported they phone lost and they have declined my claim due to the number in use while the cellphone was lost was not my number *** which I also don't know who's number is. So Vodacom they only happy if we only pay but when it come to doing what they supposed to do they can't fullfil that. It clearly shows the owner of 065 find the phone and manage to unlock it and use his or her number.

Vodacom contract is kaak