I set up an international plan for my phone while I was traveling to Switzerland for 2 weeks. My iMessages worked on my phone the entire time I was away, and still do now that I'm back home. When I returned, however, none of the Messages on my mac are syncing up. The last messages were from the day I left. I checked the settings and it still shows my phone number associated with the AppleID, including +country code. Thoughts?