Car service plan insurance

I have car service plan with innovation group and the agreement was that it will run for a period of 24 Months after that will have to take a new one for major service. Now it is coming to an end they are producing a document which is my first time to see it saying I should it run for 30 Months with calculative money of R8000, my issue is I never see the document till now. First time when I called they said they paid more than what I have contributed that's why I need to pay for 30 months for that short fall, I required my invoice the two services I had with them, they claimed 1500 in 2023 and R3000 this year 2024, which is less than R5000. When I called for the second time they gave me a new story to say is not about the claims is about the R8000 I should pay in 24 Months which will extent months because I have not yet contributed R8000. My question is why is the first time for to hear R8000 and 30 Months Secondly why are they only producing me with new document. Thirdly, why R8000 as my car was only having manor service which I claimed only R4500 for two services.

I hate innovation group insurance I will never recommend it to anyone they are ****mer, their services must not end we should just pay them for nothing. I am not happy at all I regret having car service plan with them, worse part they had to create stories as I was having a proof that they did not paid more than my contributions. I hate innovation group