So, just a quick update in case it happens to someone else. I finally received the email invitation for the oath ceremony (date is March 9) a couple of days ago, my spouse however did not. We obviously checked the spam/folders etc but no email yet.
Spouse's tracker is still saying scheduled for oath on March 9 as well so it looks like maybe the agent forgot to send the email unfortunately.
So far we emailed the same email that sent me the invitation. fingers crossed they will send invitation to my spouse as well, will call them next week if not...
@infidel keep us posted if you can on when you receive your email invitation
looks like they really like to keep us on our toes till the very last minute lol