Question [Q] Samsung Perks for Canadian Users, esp. Google Play Credits

This has probably been asked before, but I failed to find a definite answer. My apologies in advance if this is indeed the case.

I'm wondering if any Canadian user has successfully at least obtain the redeem code from Samsung upon registering their Tab Pros? I've tried logging into my Samsung account on Galaxy Apps, registering on Samsung US site with a Gmail address but to no avail. Didn't even receive a "Thank you for registering your Samsung device" confirmation as someone stated.

This has led the paranoid me to suspect that the tab I've got is a resealed open box, though I do not see any obvious evidence except that the charger was not in place and the cover for the microSD slot was not perfectly closed when I opened the package. (EDIT: speaking of the charger and slot cover, has one of these happened to anyone?)

Any reply will be really appreciated!