how can i delete my license?,how do i delete my license?

I have an old license in my account and I don’t know how to delete it, I just want to get a new one because unity hub doesn’t detect it.,Hi, i want to delete my license to create a new one because unity hub doesn’t accepts my 2019 license. And apparently the only solution is to delete your old license but i don’t know how.

I was just having this problem all day long, my license was from 2019 and now using the new hub.
tried returning the license, deleting it from my PC and then adding a new one but it just display the old one back. and when unity editor opens, it display the invalid license error.

What worked for me is to sign out of the hub, open the project, then sign in from Unity editor (button in top left corner, ver 2021.2.8f1