Iran has been blocked from accessing World of Warcraft, Blizzard has confirmed. United States trade restrictions and economic sanctions prohibit it.
A Battle.net-wide ban wasn't specified, but presumably this covers all online Blizzard services.
There will be no refunds, nor anything of the like, for those now shut out.
"Blizzard Entertainment cannot speak to any reports surrounding the Iranian government restricting games from its citizens," Blizzard employee Lurdlespor wrote on the World of Warcraft forum.
"This also prevents us from providing any refunds, credits, transfers, or other service options to accounts in these countries. We apologise for any inconvenience this causes and will happily lift these restrictions as soon as US law allows."