I received a card in the mail that included a gift card. It was sent from Macy's via their online ordering system, so neither they nor I could figure out who it came from (there was no "item number" for Macy's to search from), except from the "With Love, Sue". We have 3 Sue's in the family between Fi and I, one being my mom so I know it wasn't her. Between the two other Sue's we figured it was one based off the wording of the card and my stepdad (her brother) confirmed it sounded like her.
Yesterday I mailed her a thank you card.
Last night my step dad told me they were talking and it wasn't from her.
I'm not that close to her that I have her number or just randomly call her. What to do?