I got this message too. And keep getting it every day. Although I'm Premium, Support doesn't seem to respond in any way although the message says "please contact support" it doesn't say exactly how or why. Evernote seems to continue to work normally, but if it were to stop for the above reason I'm afraid I wouldn't have anywhere to turn.
Evernote not recognising iTunes subscription
in General Technical Issues
Posted
I got this message too. And keep getting it every day. Although I'm Premium, Support doesn't seem to respond in any way although the message says "please contact support" it doesn't say exactly how or why. Evernote seems to continue to work normally, but if it were to stop for the above reason I'm afraid I wouldn't have anywhere to turn.