Share your experience!
I have a Xperia SP white. For about two months the housing side of the phone has started to peel.
I'm sorry to hear that.
Unfortunately, it's not much that we can do at the support community regarding this. I suggest that you contact your local support team for further information about how to proceed with this in the best possible way.
http://www.sonymobile.com/global-en/support/contact-us/contact-info/