Telkom failed me

I have a cellphone contract with telkom I actually have 3 cellphone contracts with them and I have insured all 3 devices. The one device is now lost and need to claim for it and I'm now being told by telkom insurance that my device is not insured.i have proof that the device is insured I sent all kinds of proof and they still adamant my device is not insured. They have been debiting premiums from me every month but me device is not insured. Iwent to telkom stores and they all can confirm that the policy number shows that the device is insured according to their system. What frustrates me the most is that telkom has an agreement with their insurance company and yet I have to do the run around. Telkom has the proof to show to their insurance that my device is insured but for some that is not enough for the insurance company. I'm hurt I'm angry I don't know how to feel really as I feel I am losing this battle yet my account was debited religiously every month with no fail. It seems I have been giving away money to telkom. Not even sure if writing this review is worth it I feel like they don't care