Originally Posted by
Phantomchickenz81
Looks like Avios.com is not accepting new enrolments.
I don't think you can join Avios.com directly now, you need join through Aer Lingus (AerClub) or Vueling Club. Either of them provide the 16 digit number than can be used on Avios.com.
https://www.aerlingus.com/aerclub/