Ok so SE was awesome and added the class and material required for repairing items. Unfortunately we don't know what rank you need to be for those items. This problem is further compounded by some (odd to me at least formula).
Earlier I saw a LS mate AFK but with the repair icon. I forget the item but it was an R40 piece of gear requiring weaver and velveteen fent. I have loads of fent, and I was doing locals on weaver when I walked by. So I tried to repair it... oddly at R15 it let me attempt. I failed the 1st, but being a LS mate I tried again and succeded. I have 2 pieces of gear on my PGL 1 is 31 or 32 and I think the other is in the 20's both requiring the same material but I can't even attempt the repairs.
Any way if you know you've tried to repair something at 14 and couldn't but at 15 you could, post it up on the appropriate item via this link....
find the item, and post a message like you would in the forums. "I couldn't repair at this rank but could at my current" or whatever. Doing this we can assist the admins in making ZAM a better place.