My understanding of the corporate policy (per management in Vegas) is that you are limited to buying one card type per day.
Buying one VGC VISA and one VGC MC would be in compliance with policy while buying one VGC VISA in a black and silver package and one VGC VISA in a white and gold package would not. This said there either does not seem to be a clear memo on the policy or adequate staff training which has lead to some YMMV. Other YMMV comes in when an area is hit by fraudsters and local management does a knee jerk reaction to shut down variable VGC sales. This reaction is typically cash only store policies or removal of $20-500 cards on a short or long term basis.
