How can I rat but not buy?

fait thought this was worth mentioning said

I lucky enough to receive a bottle of the Mendo Blendo for rattage, but when I try to buy, I can’t. I’m getting an error that says that this purchase isn’t available for shipment to VA.

…but I live in VA. My rattage bottle was shipped to a VA address. How can this be? (Please say it’s a mistake and that VA is eligible. Please? Please!)