Thread:Brandon Rhea/@comment-27928327-20130615133813/@comment-5454372-20130615135646

Allow me to add: you should tell the user to check his/her block and see who the intended recipient was. There's a chance it wasn't applied to his/her wiki account specifically, but to a specific IP address. If it's the latter, then he/she simply shares an IP with another user who was blocked, and he/she wasn't the actual intended target.

If it was his/her wiki name which was blocked, then have him/her follow TK-999's advice and use Special:Contact/general. If it's an IP block, past experience tells me that he/she can contact the person who placed the block and request for it to be removed if they give the Block ID number and the intended blockee (if this isn't the accepted norm, please correct me on this one).