They're a warehouse wholesaler- - - -since I've either bought with my own business name or a government agency (school system) the issue of retail purchases has never come up.
Jerry
Give them a call and ask if they'll sell directly. I've bought transmission parts from a wholesaler just by walking in the door. Also from a plumbing supply warehouse where I bought a boiler and all the stuff to install it (that may have been because I was in the trade then.) They just take your money. Probably doesn't matter where it comes from.