[Silound]

I'm fairly certain heygal cannot ban your account for using your MC issued by them at a legally licensed tobacco dealer, since they function just like any other commercial business does.

The ban on use of heygal to pay for tobacco products most likely originates from the inability to prevent sale to minors, ensure taxes are properly paid, and because eCrap doesn't allow the sale of tobacco and heygal is owned by eCrap.