Scheme poor service plan

Scheme.i took a service plan last year with and agreement that i will get 2 services a year for 3 years. Did my first service no problem did the second service,problem started they said they will not pay the service center till i upgrade my plan not only that i found out that they told the people who service my car that consumables must not exceed R100. And they told them to leave out other things they make sure that the service does not exceed R2000 .so i pay R567 every month for nothing i had to oil filter desiel filter and air filter they told the People not to service them.i had to pay money out of my pocket to get my car serviced properly. Look out for mvia insure they only want to take your money and not pay for services