Absolutely disgusting treatment. I was not able to Check in Online when I logged in exactly 24 hours before. I called BA to ask for assistance but they said they couldn’t check in for me for ‘security reasons’ over the phone and that I had to do it at the airport. I am NOW at the airport and my flight is OVERBOOKED. Not only did the airline LIE on the phone but so did the website when I tried to check in saying ‘technical error’. There was no technical error to begin with, they overbook flights, don’t even warn and leave you stranded. We are not animals, stop treating us as such. You survive off our money and then treat us like pigs. Overbooking should be ILLEGAL. And I won’t be surprised if it’s banned in the next few years