If you really want to buy it online, I can help you. My best friend just bought mesos from MMOAH. He said it is a great site which he had ever used. He never expected that he received mesos in quite a short time. And the site also provides the cheapest price than others. If you buy mesos, just go to https://www.mmoah.com/maplestory-2
It is much safer than others. Otherwise, my best friend have already used it.