This happened to me all the time when I was younger and I still have people ask me about pronunciation. Granted, my name is a misspelling,
Madyson, but for chrissake it's only one letter difference. In elementary school I'd always hear mad-EE-son or ma-DIE-son and it still comes up as I have to wear a nametag at the place I work. I always responding, "No no, it's just MAD-i-son, (like you've heard a million times before)"