My car is booked in to my local garage first thing monday morning there are going to fully inspect my car for me, then write a report stating what they have uncovered.
If my thoughts are correct I will then with all my evidance, ring up the garage that did the work, and record my call, via videoing from my iphone.
I will pop them on loud speaker and ask them over the phone what exactly was done on my car, basically I am aiming to get them to say that they removed my engine and replaced the engine mount with a brand new one, then I will hit them with my evidance and ask them what they are prepeared to do about it for me not to take it any further.