I just got my phone bill in the mail and apparently my cleaning lady used our landline to place a long distance call to the DMV. (I did a google search on the number haha) It gives the time of the call and she was the only one in the house at that time, DH and I both work. It was only a few minutes and less than a dollar but the principal of the issue kind of bothers me, not the actual charge itself. She has never done anything like that before but on the other hand never told me that she made the phone call. What should I do?