The server problems—caused by overwhelming player volume—have hit PC bang (net cafes) hard. Blizzard Korea rolled out more servers earlier this month, which should help with connection issues. The refund should help mend relations with angered gamers.
On its forums, the Blizzard Korea wrote that players who less than Level 40 can get a refund. The offer is only good for a limited time (June 25 to July 3). From now on, players under Level 20 can also apply for a full refund within fourteen days of purchasing the game.
Blizzard Korea seems to have been pressured to offer these refunds—something it originally didn't want to do. In late May, the country's Fair Trade Commission began investigating allegations that Blizzard refused to offer refunds to players who purchased Diablo III and were frustrated with overloaded game servers.