Motor-unhappy

Worst service ever, there is no motorhappy here rather motor-unhappy!!! I switch service providers thinking it would be better but got even worst. Was guaranteed my car could go today for a service after they received 4 payments but when the dealership called for authorisation they refused to give authorisation...so what now?? Cars up in the air and now the service cannot be completed...and when I called was refused assistance as the plan is on my husband's name, really??? It's a car service plan...not calling a bank for details...just wanted to find out what's the damn hold up!!!!