You are getting lot post to your link but you are giving payment to only person is really not good for other who promotes your link, atleast you need benefit the other members who promotes your link. If you can change your mind and pay to all the members who promotes your link.
Sorry but we can't change the rules as the giveaway raffle is almost over. Not everyone can be a winner and we certainly can't pay 0.05 BTC to everyone who participates by just sharing our link. We would be broke after that.
Thank you for your feedback though. We'll make a new promotion soon where everyone can get their share.