It was always a little patchy, but I would suggest looking up the club secuitary and emailing them direct, rather than going via Facebook.
It used to be that you got your copy of the magazine, which was quite good, and access to the club spares department.
Then someone has the daft idea of making the club forum "members only" and the number of posts went down and it's probably gone the same way as "friends reunited" now (prequel to Facebook that killed itself asking for a subscription)
101 spares (or whatever it's called) carries more spares than the club ever seemed to also.
(I've owned a 101 for over 20 years - I have nothing against the club outside of the foolish members only development of the forum, but I've also been a member for very few of those 20 years)