Why can't I use my credit to buy slotomania coins?
I have store credit but am not able to use it to but coins. Why is this?
What happens when you try ? If you are getting a message to contact iTunes support then you can do so via this page (these are user-to-user forums) : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then try selecting Billing, Purchases & Redemption.