Just Don't
I had a terrible experience with MMOSky while trying to purchase items for the game Lost Ark. Despite waiting for two weeks, I received nothing. When I changed my delivery method, I was still met with unhelpful support telling me to wait longer. Based on my experience, I cannot recommend this service to anyone looking to buy anything related to Lost Ark. While I can't speak for their other games, I imagine the experience would be similarly disappointing.