I think you can call them and ask if you can request a specific item. Like people ordering alcohol. They can at least tell you if they can or not.
Also I hear wegoshop does specific requests. Maybe you can try them this time around. They don't do "online" shopping which means you have to give them the brand name/type/qty of items you want from them. I think that's a little less convenient for me but a lot of people like it especially if they need special items like you do.
Good luck!