Any one know what the actual code is

Engine management light came on took it to vaux. They first said there was no code but the re-aligned the EGR system is this possible?

Next once I had some petrol for the road test the second bloke said it was the EGR valve at fault but its fine now but if it fails again its going to cost me 200. They must feel its going to fail sooon as they didnt charge me for the test

This confusion at vauxhall new flagship dealership. the only good thing about it is I can surf the net look at mig web while sitting next to a VX220 t