Qatar Airways - Business Class Nightmare: Denied Boarding and Abandoned Without Assistance

We bought business class tickets to Japan and received the worst service ever. Due to a minor spelling mistake on my husband's visa we were denied boarding the flight. Although me and our disabled daughter's documents were correct they denied us all boarding. My daughter is disabled and very traumatized by the conflict. The did not offer us any assistance - not even a chair for our disabled daughter to sit on while we try and sort things out which took more than an hour. In front of everyone in a packed airport they moved us out of the line with half of our baggage (the other half was already sent through) and left us in the hallway to fend for ourself. The Supervisor and Manager were very arrogant and upon my question as to what our options are they just told us to phone the call centre for assistance and to wait for our baggage which was sent through for more than 5 hours as the plane had to leave before it can be retrieved. They do not offer any service or assistance of any kind to their passengers - not even Business Class means service or any kind of assistance according to Qatar Airways!!