I have recently completed a holiday/tier point run to Puerto Rico on an I fare booked last November on AA.com

I am now having an argument with BA as they are refusing to give any tier points/avios for the club Europe flight Dublin to London City saying it is now ineligble. They are also refusing to post more than 140 tier points and business avios for the LCY - NYC flight because it was booked on an AA codeshare. This is not what MMB has been stating for the last 10 months!

On the way out I did Dub-Lcy-Jfk-Sju which has now posted only 180 tier points. On the way home Sju-Ord-Lhr-Dub was 320 tier points. In the future I shall give Lcy-Jfk a miss given the low earning rate.

It is worth double checking what flights are eligible for tier points before booking a trip post April 28th.