Belly Button Piercing - Need Advice

Okay so I went to go get my belly button pierced a while back. I went to this shop and the guy looked at my belly button and told me I don't have the "right kind of belly button" so he refused to pierce me. I've never heard of people being rejected to get a piercing .. I still really want to get it pierced though but don't know if I should. I don't want to get a keloid or anything. Advice?