I flew a bunch of flights on EI LHR-DUB prior to June 1st in classes X, R, S. BA claims these flights were ineligible for miles prior to June 1st and eligible now due to EI doing a fare code realignment.

Does anyone have any information about this fare code realignement? Was any info posted on FT?

What would these classes have earned points on EI? How many points would they have earned on EI prior to June?