Discount promises not met

I have a bakkie insured with outsurance and am supposed to receive a discount every month for the tracker installed, in fact they don’t cover my vehicle if there isn’t a tracker installed. So obviously I have a tracker installed since the beginning as the company I am using was outsourced by outsurance. After calling outsurance to inform them it was installed all was in order and I received the discount for one or two months. I sent the tracking device certificate to outsurance 28/01/2022. I followed procedure and for some reason my discount was just stopped. I have spoken to two agents already both of whom are baffled and confused with no answers as to why and telling me it will be escalated immediately but to no avail. No one has contacted me as yet to resolve this issue. Outsurance obviously do as they wish it seems and remove discounts as they see fit or someone working there didn’t update the system? Thus, there is money owed to me. This is really frustrating.