Edited to correct a Freudian slip in para three: NO commission

I think Clause 3.5 of the forum terms and conditions forbids advertising, which is, I suppose, what you are doing. Personally I am OK with what you are doing but that doesn't count for anything! I see a difference between a user with RA trying to shift a piece of kit that may help another user with RA, and advertising say glucosamine tablets.

Wait see what the moderators say.

If they are not OK with it, you should try a service that I have been using for a while called gumtree.com where you can advertise for free with NO commission taken. Hmm, now was THAT an advert? :) I'd've PM'd you except that's not allowed on this forum due to some prior bad experiences of users using the facility to abuse other users. Shame that the solution was to ban PM'ing for all users rather than just booting out the abusers. It must have been a serious breach for such a draconian reaction, Dunno. before my time.