User blog comment:Tails365/Skin Price changes/@comment-5678913-20130412172337/@comment-7305443-20130412183537

No they won't dock your RP if you have skins that are having price raises and they certainly can't take your money if you have no RP available.

But I am pretty sure that I read they will give out some sort of refund for the skins with price reductions at the bottom of that news page (can't access it from this computer so can't quote it).