Originally Posted by
typical
Nope, immigration have asked for something on headed paper and with signature or other BA "official" mark. BAEC helpfully resent the cancellation email too, but apparently that's not enough either.
I think what you are asking for become unrealistic around 1975. And that would probably apply to any airline whose management isn't stuck in that era, accepting that some state enterprise airlines may still be there. I would be very surprised if the bureaucrats were not aware of this.