Very disappointing

I have been with Liquidcapital since September last year, paying every month, my vehicle needed to go in for a service today, yesterday I phone them to make sure that everything is in order. I gave my mileage of my car and they told me that everything is in order. I made the booking with the dealer. After dropping my car off at the dealership, I was contacted to be informed that my policy does not cover this service, which is a major service, they will only cover a minor service and all the rest must come out of my own pocket... Question... Why then do I pay over R600 p/m for this policy where I could have saved that money and pay for a major service myself? False advertising and empty promises is at the end of this call... Be careful everyone.