Bidvest mechanical warranty

I'm not happy with Bidvest mechanical warranty. I had problem with my car and I informed but they didn't attend my problem until I fix my car, after I fix my car I informed them that I fixed the car because they didn't want to attend my problem. Bidvest request me to send them invoices and last service of the car while on the agreement car service is not included. I pay them every month but they ****med me.