im confused,he said orry he couldnt pass it, he has had trouble there before and didnt want to lose a customer,in what way ?

he has lost a customer as you wont go there again

 

he has just lost a customer though!

they could have passed it with the advisory and advised you change it before the next test?

no point worrying now though, you have found a nice garage and the car has passed so job done!