I have been buying most of my steel from AKS for many years. I have never had any problems. I order steel, steel shows up, (pretty darn quick too), I make knives. I use to buy a lot of natural handle materials from them as well. They made the business decision to no longer carry natural handle materials. So I started sourcing those materials other places. They certainly have the right to do so if they want and I did too. Kinda how these things work. Many of my suppliers are small family run businesses. Each has its own way of doing business. It's what works well for them. This outfit has this procedure, another has a different, a third completely different. Order on line here, call there, send an email at this outfit. I certainly don't know the details of your situation with AKS so have no criticism to offer for either side. You asked if we've had the same experience and I have not.
That being said I have fired customers. Not many, out of many thousands of customers, but there are a couple where the PIA isn't worth the $s earned. So I won't do business with them.