Cellphone Theft in home invasion but accused of blocking phone & unblocking at a 'Paki'

Had a home invasion last year and only part claim was paid. My cellphone which I used up to hour before the ******* was not paid. We blocked the phone almost immediately upon realizing it was gone. The outsurance assessor went as far as accusing us of taking the phone 'to a paki to unblock'. Cell c confirmed my Sim was in the phone as well as the chronological sequence of events. Now that we provided the evidence, we can't get a response from the claims handler.