Blizzard heard the cries of its community, however, and jumped into action by furiously working on a patch to combat these problems. The patch has since been released and many of the problems have subsided, unless you live in South Korea, that is. Blizzard has recently confirmed that it will begin offering full refunds to Diablo III players in South Korea due to connectivity problems, crashes and slow connection speeds from overcrowded servers that are still tormenting the community in that country.
The problems are so bad in South Korea that the South Korean Fair Trade Commission went as far as launching an investigation last month after it was inundated with complaints from users affected by the problems. Even though Blizzard stated at that time that it wold not provide any compensation to the gamers, South Korean consumer protection laws state that users must be granted a refund for any product that has a problem not cause by the customer.
A new post on the Korean Diablo III site says that players who are less than level 40 will be able to submit for a full refund between June 25 and July 3. Any player who is less than level 20 can also return the game up to 14 days after purchasing it from this point forward. In addition to that, players will receive a free 30-day trial for StarCraft II: Wings of Liberty.
Blizzard did add additional servers to Korea earlier this month in an attempt to fix the issues faced in the country. Almost two-thirds of Diablo III traffic in Asia comes from South Korea, but Blizzard misjudged the user volume when creating servers for the game.
Source: IGN - Blizzard Offers Full Diablo III Refunds in South Korea