Thanks for taking the time to post. Something to note. If you check your “My Clan Section”, there should be a button that looks like a helmet on the top right of the page. Clicking this button will then remove you from the clan.
Now, how long ago did all of this take place? If you tried to create, join, or accept an invite to the clan in rapid succession, it just make me taking a little time to properly update your profile. Give it 24-48 hours to update your information, then try to leave and join the correct clan.