Thank you very much for your post. As much as I am sorry to read this, pls, see below.
Multi Inventory has no warehouse transfers available. We never claimed it has, there is a demo to try as well, plus full documentation.Transfers can be worked out by stock logs for now.
We have no return policy as you own the file and can pretty much use it till the rest of days, however, I am willing to discuss in a private ticket.
Hope this helps,