LHR-EDI in May

Anyone know what's happened to all the flights in May. I'll need 2 tier points for this year and my plan was to do this via a day trip in EDI but almost all flights appear to have availability of zero. EF shows the fare buckets as 0.

Any ideas?

No idea.
I spotted this earlier today, so have to put off booking some flights.
Someone must have pushed the wrong button...
Hopefully it'll be fixed tomorrow morning when the member of staff who controls inventory is back in the office, and can click Undo.

- seems fixed now.