Anyone who has worked in a computer repair shop know how it's supposed to be, but that's not how it actually works. Apple can't tell if the guy who did the repair is Apple-certified or not unless it's a single worker shop. Way back when, when I was the only tech to pass all 3 Apple-certification tests (laptop hardware, desktop hardware, software) we had 3 techs who did Apple repairs. Some of these indy shops will having 1 Apple-certified tech qualifies, but that doesn't mean every tech in the shop knows what he's doing.