Lost All Emails after renaming an account

Here are the exact steps I did:

1) My previous active account was *** Email address is removed for privacy ***

I signed into the outlook.com using this email and was able to view my old emails

2) I created a new email Alias *** Email address is removed for privacy ***

3) On the account settings *** Email address is removed for privacy *** was listed as primary with the new alias

4) On the account settings I changed the primary alias to *** Email address is removed for privacy *** 

5) Signed out and resigned in using the new alias account i.e. *** Email address is removed for privacy ***

At this point my inbox was empty

6) Signed out and resigned in using the old email i.e. *** Email address is removed for privacy ***

At this point my inbox was still empty

7) I updated the Account settings to revert to the old setup i.e. make *** Email address is removed for privacy *** the primary email/alias and *** Email address is removed for privacy *** as the alias

Can you help me recover my old emails with *** Email address is removed for privacy *** as the primary alias

Thanks

Kedar