Wow, that kind of shop still exist? Well, it goes into my blacklisted PC Shop at LYP.
Anyway, there is recovery software that can revive ur data(even formatted).
Try goggle this: PC INSPECTOR FILE RECOVERY (Its free).
SRI Comp is another lousy Comp shop, eventhough its the biggest shop there(am i rite?), but I never ever gonna purchase anything from there. I have no confidence on them.