I can't find anywhere to leave customer service feedback
You would have to be a little bit more specific about what you mean by "customer service." Are you referring to retail service? Support? Online or telephone service?
If you have a comment about web-based support services, you can leave feedback, here:
http://www.apple.com/support/feedback/
For post-purchase issues, you can leave comments or questions, here:
http://www.apple.com/support/store/postpurchase.html
For other issues, you may want to contact Apple's corporate offices directly:
Apple
1 Infinite Loop
Cupertino, CA 95014
408.996.1010
Good luck!
