Hello. so sorry I am just getting your message. I unfortunately don't have any tips on how to get an increase in stamps. I try to do all of my daily quests to receive stamps but you only get those on IOS systems like iPhone or iPad. I do know Lani comes every 4 hours so I've been trying to log in to make sure I get her drop. Also by cooking you can get drops. Those are not guaranteed though. The only way to get gold stamp is from the cruise. I try to save those unless needed for a quest. You can also purchase stamps via value pack or gems. I hope this is some help for you. Please feel free to ask me any questions and I will try to help you! Please come visit me and maybe we could be neighbors!