Apple Business Manager app purchases not appearing

As recently as a week ago, this was working fine for us, however today one of our staff needed a new app added, so we attempted to 'purchase' the free app in our business manager account and are experiencing similar behavior. The 'purchases' seems to be successful (we tried a couple of times), but then the app doesn't appear in our list, though the purchase attempts do show up in the purchase history. We also have not received the email notification about the purchase from Apple as we'd normally get. I expect others are experiencing the same trouble... I'm still waiting to hear back from Apple Support on the matter.