Worst airline ever

This the worst airline service my family andI have experienced. Firstly the ground crew at OR Tambo took 45 minutes to check me in and did not print a boarding pass for my daughter but printed the same one twice for my other daughter, as I a result I was running around last minute trying to sort out Qatar airways mistake. I have proof of this. Secondly on the return flight they were overbooked, yet my ticket was paid for. We were a family of 11 of which 3 were inconvenienced. I was separated from my wife and kids and my brother in law was separated from his wife. We were 4 hrs ahead at the airport. We tried online booking and the ill fated system won't allow us. Finally we manage to swop tickets and my brother had to fly the next day. I am at the airport now, where there is no seating space when boarding. You have to find a seat one mile away from from boarding gates, because all the empty seats are behind glass, with no access to them. Never again will I fly Qatar airways or even stop over. Worst airline ever.