I have had my car at 3 garages due to power loss.

I have had my car at 3 garages due to power loss.
None of them rectified the issue and the last garage said possible turbo failure.
I was recommended its turbochargers so I took my car along today 1st october 2018.
2 guys came out to have a look and within 15 mins had checked the turbo and found a loose bolt.
They tightened the bolt recommended I take it in to another garage to have the others tightened.
They then checked over the turbo amd gave it a clean bill of health at no charge !!!!
What can I say other than great company.
The 2 guys that sorted the car were spot on .
Cheers its turbochargers for a great start to my week .