Got 4 calls in a row early this morning about 6:38 to 6:44 a.m. while waiting for train.  I answered the 3rd call and because of the noise at the train station I couldn't hear the caller well.  It sounded like a pre-recorded message about did I make charges to a hotel in another country....I tried to call back but do not get any answer.  It definitely isn't my credit card fraud department.