Finrite Administrators Declined my Claim

Finrite insurance administrators declined my cellular device claim because they said their system shows i never used my sim card in my device since 20th September 2019..I have been using my insured device since the 12th of September 2019 and got damaged in March 2020 and I borrowed a phone from a friend and inserted my sim card in the borrowed device 30th April 2020.Finrite can only pick up on their system i started using my sim card on the 30th April when I inserted it into the borrowed phone...they have no usage of my sim card been used in my device with registered IMEI number for my damaged device I now claim for. Can someone anyone please advise what action can I take against this company because their system is right and my truth is not good enough..I have bought Vodacom airtime, Data and redeemed my Vodacom talking points on this device but Finrite administrator Felix Mokaba says their system is right and never wrong, therefore decline my claim.