Tomcat1927

Dear ESET CSPro Support, I bought a 13" MacBook Pro in Sept. 2020 and realized I need a larger laptop so then bought a 16" MacBoo Pro late September. Since I am returning the 13" to Costco, how do I transfer my ESET Cyber Security Pro to my newest 16" MBP now that I am returning the smaller MBP? I do have the barcode activation key for the Cyber Security Pro for Mac that I also purchased in Sept. 2020. Thanks for your help.