Poor workmanship

Terrible service, i was given a quote to repair my gearbox and the first time i gave it in , they didnt repair the problem , i then took the gearbox back and they repaired it the 2nd time around but caused damage to my vehicles electronics in the rush to sort it out and after a few days i was inspecting the engine bay out of curiosity to see what other damage was caused, i noticed 2 engine mountings had bolts missing, i had to then buy bolts and install, the good lord only knows whats probably missing inside my gearbox, Micheal March does Sub standard work and should never be trusted with your assets as he was very defensive regarding the above issues i experienced.