Vodacom store

Few months back I think July somewhere my son broke his insured Samsung A33 phone and as punishment I put the phone away. Now 2 weeks back I decided it is enough and I took the insured phone to a Vodacom store and they called me and said the claim was declined due to the contract sim not in the phone since July. I then explained that I switched it off and put it away and in that regard can they furnish me with proof or evidence that the sim was not in the phone and they can not. I know there was 2 sims in there and the primary sim was always in slot 1. Can management contact as I am not pleased with Vodacom repairs and when all my 4 contracts expire now i wont renew.