--in short, yes it is safe, and GBAtemp is here to guarantee it--
to answer previous criticism:
1) there were a FEW issues with microSD cards. When i say a few, thats like, 5 or 6 out of like 10000. That's still quite high, they'd rather aim at getting a 0% defect rate, so they changed suppliers and now are using the official kingston recommended ones. There's invoices to prove it.
The problem being, whenever someone has a problem, they feel inclined to post it on the gbatemp forums because there's an "official" place to complain. For other shops, sure there are complaints but people don't know where to post them...
2) gamefreak94: about your particular issue, I don't know what happened but there must have been a technical problem. I mean everything's automated, if your order had been fine, why didnt it get processed? I know they've had host problems before (which they solved btw) and some orders didn't go through because of PayPal. Anywayy, like I said before, GBAtemp is here to ensure that things go smoothly, if you have a problem or feel that something went wrong or something's not fair, you can contact one of the admins directly by PM and we will make sure that "justice gets done".
3) jalaneme: not receiving an item happens *extremely* rarely (I haven't seen anyone complaining about it here yet, but it could happen), and it only happens for non registered HK airmail. If that were to happen though, they have insurance and your order gets refunded or resent. So customers always get their stuff eventually. Besides, they take photos of each parcel before they get sent as proof of shipping.
we weren't going to partner with any random shop, you'd imagine that we made sure that they are reliable