Good evening everyone, I was one time without messing with ragnarok and now decided to go back, so I'm creating a vip npc using "% d /% m /% Y" all right so far, the first time the npc adds the level of vip which is 1,2 or 3 days and everything right, but if I go back to the npc and try to add more days he does not add, and for example if I add 10 days he sometimes adds but adds only eight days, as I said I was about two years without messing with scripts and now I'm back so I do not remember much more, posted the npc below, if anyone can help me explaining / pointing out the mistake I am grateful now.
Sorry for pessimo English, I am Brazilian and I use the rathena.
NOTE: The npc is not all ready.