PPR is a disease spreading everywhere.
Not just the UK (where a phone call is not hard) but abroad where they often don't take English calls and that is even at major international airports.
Most PPR is pointless.
The other week I cancelled a flight to one such airport because they refused under their 24HR PPR, on the grounds that they had 60 bizjets turning up. In the end, the apron was reported virtually empty.
Jobs for little men, 95% of the time.