Go Mechanic - Failed to meet the requirements

I have spent about ***** with go mechanic and for my pick up issue and breaking issue and many complaints. They solved many small complaints. I have given my vehcile more than * times. In * months i only used * month rest of the time it was go mechanic only and still my engine pick up issue is there when ac is on. And but i was still tired up and driving. I had taken intially comprehensive service which includes engine pick up and breaking checking everything in end the of the may month .And recently my hand break is failed. i only told that my hand breaking is failed and they charged me again **** around. Today again my pedal breaking is failed and i am about to meet an accident. Spending all these many just no use. I am tired of raising complaints in go mechanic.... i cannot trust the service they provide me. Results my breaking system failed. This cannot be accepted at any cost. Recently i gave my vehicle to check completely breaking system. Even my hand breaking got failed after my comprehensive service earlier. Now again my pedal breaking is failed.