Oops you couldn’t make it up. I missed out on the double Avios as I booked in January and registered in whenever for flights in October/December. I got the same email cut and paste about the eligibility which is fine I wasn’t sure if you had to register before I booked and I know I booked in Jan.. it’s a bit disappointing when you phone the Gold Line and query this and they say oh I’ll get these points added on when they should have picked up there that they weren’t eligible.. first world problems nothing to lose sleep over