By the way, I did contact TurboTax support again as @xmasbaby0 suggested. I was told again to contact the vendor that sold my the TurboTax products (i.e. Costco). Costco Support then told me that its digital delivery partner does not keep older version of this product, and referred me back to Intuit.
I am quite disappointed that such a simple thing (just a download link for the installer) has taken me hours to be bounced between these 2 companies.
