Advice on Remote/Hybird

I have been working at my job for 4 years. i made sure initally it was a remote position. Fast forward 2023 they changed their policy stating if you are over 35 miles you are exempt from the hybird schedule if you are under 35 miles you must go in the office. I am 50 miles my letter stated I am exempt from the hybird schedule. I never went in i remained remote as the letter stated I was exempt. Just recently we received another letter states the new mileage update is 50 miles. Hybird roles 3 days a week or 2 days a week. Remote within 50 miles to come in 1 time a month and over 50 miles to remain completely remote. They sent me a letter saying I am hybird. Can anyone help me understand this?