The Easyjet "guarantee" is a complete con.
It's a sale that includes the weekend but the small print says that if you find the fare cheaper on flights between the same points within an hour of the same flight times within an hour of making the booking you can claim the difference. The problem is that you can only claim between 9-5 Mon-Fri and they have to be able to find the same offer themselves!!! How the hell are they going to do that over the weekend when you can only claim between 9-5 Mon-Fri??
Bunch of rip-off artists