https://www.kobo.com/ca/en/library/archive
That should link to the archive of your account if you're logged in. Might have to change country/language but I don't think the Kobo store was open outside Canada in 2009/early 2010 either. First Kobo wasn't launched until May 2010.
All my purchases going back to 2011 are still there and are fine, even ones no longer for sale.