Find someone else to buy your medical devices from ...
Called to check stock on a travel CPAP and CPAP Supply USA confirmed it was in stock. Placed order immediately. Credit card charged. Received order confirmation. Called 5 days later wondering why it hadn't shipped and was informed it was on backorder. Put me in a really hard spot since I needed the device for schedule business travel. Was lied to that it was in stock - and who charges customers for stocked items that are on backorder (reputable companies don't). Customer service folks were good, but clearly their is a bigger company issue. Won't be a customer and would encourage you to find an alternate source for you medical needs.