Terrible Service

I bought a Toyota Starlet in December 2022, I opted to buy an extended service plan for the car. I booked the car in for service with Toyota Bruma on 1 September 2023, only to discover the extended maintenance plan doesn't exist. I contacted Motus and Millicent Maganedisa, who handled the financing told me I canceled the plan. The initial story was I canceled the plan on 29 December 2022, yet I took delivery of the car on 15 December 2022. On the 21st of December I had requested documentation to show that I purchased a maintenance plan, which Millicent sent on 22 December on email (maintenance certificate with all necessary details). After a few phone calls, her story changed and she said I requested the cancelation on the day I took delivery of the car, and subsequently sent me a contract that she claims I signed, where the policy was canceled. To this day there's no explanation why I was given a maintenance certificate. I subsequently spoke to Navashen Pillay and I was told the issue would be looked into. On Saturday 9 September, I received an email from Millicent saying I should bring yhe car in for service at Motus Isando, it's now 7:49, I've been here since 7:22 and the dealership isn't opened yet. To say I'm disappointed is an understatement. The worst service ever in my history of having cars.