Nickname got instantly reserved/blocked?

Good day there everyone!I'm not sure this might be the exact right topic to create this thread but I've found it most suitable.

I'm having a little trouble right now , some time ago I've created around 6-7 characters purely randomly w/o any customization just to be sure I can use my nicknames later on when I'll decide to come back to WoW.This moment came.I've logged in , deleted the random char with my nickname and proceeded to create the char with the look I want to and using my nickname.Boom!The name is not available.Huh?- Was my first thought , I mean , could it be that 1 to million when some1 made the char using that my name that I've made available like 25 seconds ago ? Don't think so , I've checked armory : Nothing again!It happened 3 times in a row with 3 my nicknames being blocked/reserved I don't know the explanation.Acc name : Agito9.

I hope it's explainable , probably something that I'm missing , not sure.

P.s Forgot to mention , realm : Lordaeron WoTLK.

it is a geneal issue that is happening on Lordaeron and Icecrown, maybe a server restart will fix it. If not then open a ticket in-game

Thanks for the info mon!