User blog comment:Ducksoup/Why We Don't Unblock You/@comment-24787296-20150917080132/@comment-366087-20150917153424

It depends upon their intent. If they are following you to another wikia to *harass and harangue* you further, first ask the involvement of the local admins if you are not one. Continued pursuit cross-wikias would call for reporting them to special:contact. I've had to do this.

IF, however, their intent is to try and sincerely *discuss* the situation to correct and resolve it, then either hold that discussion there, or ask them to re-contact you on Central. Another option is to unblock their Talk page so you can discuss on the affected wikia in question—which in my opinion is the better way to go as it also leaves all pertinent correspondence on the one same wikia.