The monster EATs did come as a bit of a surprise. We departed an hour down the road into LHR and on initial contact with Laaandun were told of EATs of 25mins.
When we left BovingTON people were getting 35mins. You don't expect things like that when the Wx and AIS gives you no reason to suggest there's a problem (especially when you're 4000miles away in Africa.)
sB