xomarshmallow review for PreOrder Now Backorder WOD

I wish I could tell you how this app works, but I can't. I got a preview of it and asked for a demo to walk me through set up and they couldn't comprehend what I was asking... just a simple demonstration to show me how it works. Someone finally set up a call with me for 4pm. It's now 4:30pm -- nobody ever joined the call or contacted me. They clearly don't want your business, so don't waste your time trying to give it to them.