A few months ago, I changed my nickname on on my private account to something I only wanted to last a week, but when I went to change it back, It said I couldn't change my nickname more than 3 times in 90 days, even though I had only ever done it once. So I waited it out and finally got it to change back after 90 days, but now, and I have no idea how, but the nickname I did not want to keep has now transferred over to my school email, which is not good, and when I go to settings to change it, it says it is just my name, like normal, but on the emails I have sent in the last two days, It appears with the old nickname and I am completely lost as to how to solve this issue