OKay bought the car from a local garage (UK)

Had CEL light on within 2 days took it back and they diagnosed lean mixture,
he revved the engine to 3000 and he says the light went out so he reset it
basically.

Took car away and the CEL came on with 50 miles surprise surprise, this time
they decide to change the front box on the exhaust cause they say it was
blowing and the sensor was picking this up - same again Lean Mixture
diagnosed.

Got the car back and within 100 miles again the fecking light is on, now I
know the next two parts of the Lean Mixture flowchart are:

1. Fuel Flow
2. Fuel Pump

and then the big one the main O2 sensors.

To be honest I do not want to be travelling 40 miles round trip to this
garage everytime the CEL comes on as it is a bain, they will not let me get
the diagnoses and repairs done at a garage nearer to me and bill them.

I have told them I want this fixing this time or I want a Full Refund as its
an independant, I will name and shame them if they do not fix the problem
soon.

Anyone had any similair problems from small independant garages?