Suddenly unable to receive iMessage/text from one contact - please help!
Messages I send (though no longer iMessage - just text msgs) are received by this contact, but I haven't received a message (neither iMessage nor text) from this contact for over 10 days. I'm still able to receive calls from this person, and I send/receive iMessages and Text Messages just fine with EVERYONE ELSE.
Please help.
iPhone 4, iOS 6.1.3