Emails disappeared aftering reorganizing folders

I was attempting to reorganize some email in a couple older accounts using Outlook for Mac OS by creating a folder and moving existing folders into it. However, after moving the folders the existing mail was not present in the folders. In retrospect, I'm thinking that may be because the mail had not downloaded to the local computer before I moved the folder. I quickly undid all the moves; however the existing mail is still not present either on the local computer or in webmail. It seems the server deleted the messages when I initially moved the folders.

Does Comcast have anyway of retrieving these messages?