Aside from the obvious, OP may want to do some investigation first.

I dont know about VRs, but I know the VGC available at CVS is different from that available at 7-11.

The VGC sold at CVS is activated by scanning the bar code. The VGC sold at 7-11 is activated by swiping the card which has a meg strip on the package.

Soooo, do your homework first before you ask your store if they could give the unactivated card to you, because you may get something that could not be sold by another retailer!