Jo- The flights came on at 05.30am by doing the scrolling but were all through normally at 06.00am .
The flexi fares are only usually available about 3 months before departure ,and the prices of them have got higher,also normal prices will have increased by then,you have to wait 24 hours after purchase to change them and do check if flights are not then full.Think they have started pricing flexi tickets higher after Martin Lewis advertised the trick haha.