They changed plans after I had checked in and had my confirmed seat. They changed my comfort seat to main cabin and even though there were 4 available comfort seats showing, I wasn’t able to pick one. When I asked at the counter if I could switch back to my comfort she said no.. bc someone else may have higher status than me which is ridiculous bc I was originally comfort. On the flight, I asked the flight attendant to switch and he said once they closed the doors he’d let me know, and he never said anything to me again. Plus we were an hour late arriving, because apparently we weren’t cleared to land and we had to circle. Not sure what’s up with Delta lately, but this was a crappy experience.