Originally Posted by
Stranger
Also, it is possible that the infant needed an exit visa.
I would not be surprised if at the end of the day, the mess was the guy's fault really.
They got a ticket on EK and had no issues flying out in time to catch their original AC flight out of LHR. That makes it fairly obvious that it isn't an exit visa issue.
Your conjecture strikes me as a poorly disguised attempt to obfuscate/deflect blame from AC or BA (as the case may be) to the pax. One can only guess at your motive.