Finding previous exports

I am trying to access an export I did on the 8th of May. I had downloaded it, but then deleted it once I downloaded a recent one with updated data. The form (questionnaire) was edited several times, so some data from previous entries, are not appearing in the new questions columns (which is quite understandable). My worry now is that for those few questions (group) that were changed/edited, has all the data captured before the changes been lost? I was hoping to redownload the export I created on the 8th of May, but it is no longer appearing in the download tab of Kobotoolbox. The most oldest export is for 29 May.
Can I still get the export created on 8 May? How?
Has the data collected before the changes been lost?

@rukudzo, this post discussed previously should help you solve your issue: