Two options ... CRY or JUMP off a Cliff!!!..

Thanks for all your comments so far chaps ,

colicabcadam - i totally agree with your comment and looking down the legal / claim / compensation route i dont have an awful amount to go on. The only thing that keeps running through my mind is they did diag (ecu fault code checks ) and went for a testdrive. and they found no reasons or issues to cancel the go ahead with the remap. The engine wasnt smoking or experiencing any running issues what so ever before i took it there, after they did the checks and test drive they went ahead with the remap.I popped out to a store accross the road for a drink while the work was being carried out and the technician was bringing the car back in ( NO SIGN of any smoke etc when he was driving past). and soon after getting my drink they rang and said the work was complete but there was a boost issue to look into). i headed back in and the tech explained it common for the vacuum hoses and other similar parts to perish / fail so they could carry out a pressure check to narrow down the leakage point. This would cost me labour charges that i couldnt afford but i needed it sorted so went with it. The tech fitted a blank to the inlet pipe where the air filter connects it had a tyre style valve fitted to it with which he used a compressed air line and a tool used for tyre inflation to pressure the inlet system to try and achieve at least 30psi. I watched the inlet pipe inflate quite a lot and listened to the hissing from other small hoses on the vacuum system which indicated leaking. We highlighted a hose that needed replacing as it had a small split in it. They said the remap was fine but it would make more power once these hoses were replaced. So they determined the part number for the split hose and with that they said bring it back in once ive replaced it and theyl do the final tweeks with the map. I went back to the waiting room while they fitted the covers etc back on the engine. approxamately 10-15 mins later the saleman came back through and explained when they started it back up to remove it from the workshop it was smoking heavily ( cloudy white). What im trying to work out is based on this when they did the pressure test it unsettled something causing it to smoke when it was started back up. Can anyone see if i have a leg to stand on with this?? any guidance? ive brought the car back to my work where ive started looking into it. Spark plugs removed with no damage to them, compressions were ok considering the engine was cold ( as im not running it until ive ruled a few things out). Any advice much appreciated , Many Thanks

Sigainey . The filler cap was still on and it was hissing quite badly.
And jason im not saying it was necessarily their fault but the vehicle was damaged in / during their hands / process....

Thanks for your comments guys. If I can get a mechanics opinion on whether this is an exceptable process pressurising the system this way then I may be able to get something done or not about this... Ive just finished the engine checks everything seemed ok comps were good. Pressurised coolant that was ok. Borescope looked good. Turbo had slight play but not excessive. And no oil on intake side or boost side. On start up no smoke for around a minute then it started puffing out and lots of. It definitely smelt of oil and on inspection I could see signs of wet on the turbo flange to exhaust downpipe. Conclusion that oil seal blown on turbo in my opinion. I guess the case now is whats the best way to remote turbo and can anyone who's done this themselves please list all the parts I will need to replace? . Many thanks peoples