Daly ford, service plan or no service plan?

Today I'm writing a review on behalf of my aunt, Jeanette Mokoena. so she bought a car at Daly ford in 2020,the current mileage on the car now is 29 000 km, when she took it for 20 000 km service she was told the car is without a service plan and therefore she will have to pay out of her pocket...i stand for correction, isn't the car supposed to be out of service plan after 100 000 km then she can either opt for extended motor plan cover or to pay cash everytime she takes it in for service? This is not a complaint or a query but a clarity seeking situation so that we fully understand what we're dealing with and be able to plan ahead next time. Please assist 082 788 4712