The Convatec rep assured me my flange wasn't discontinued - my first thought - and that a number of other items were on backorder...
I had the bad luck to order online for the first time ever....lol...but when I called, the supplier's rep said they might not have known about the backorder even if I spoke to a person.
Since I am shortly going to be out of the country for two months I couldn't wait patiently to see what will happen. After a couple of calls to other suppliers who also had no availability, I found an online supplier and my order is supposedly soon to be delivered.
So just make sure if you are really down to the last week of supplies that your supplier has them in stock....
