Painter 2019 -- cannot access/use!

I have purchased Painter 2019 -- in or around 2019.  I have the serial number given to me for that version.  After a "C:" hard drive crash, I do not have the ability to use my Painter 2019.  The Corel site has versions 2020, 2018, 2017, etc., but no ability to download the 2019 version I paid for.  Can anyone provide me with some sort of link to access & download Painter 2019?

Painter 2019 has all the features I require; and upgrading to the current version is financially not feasible and feature-wise not necessary.

Please assist.