The SEIBEI store is hosted by Shopify. Your data is protected and stored and encrypted by them.
Even if I could see your credit card number or anything on my end, I wouldn't know the first thing to do with it. I'm not going to email you or contact you unless you sign up for our newsletter, or I need to contact you about your order. Long story short: all of our important business is handled by people other than me, and thank goodness for that.