I bought TTAX Premier for TY 2022 on eBay. How can I download the software? I can't find a link.

EBay is not an authorized seller.   Did you get the 14 digit License Code?   Did you get a CD?  If you have the License Code you need to call in and ask for the download.   

How to contact Turbo Tax
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-contact-turbotax/00/26991

Thanks VG, will do!  I do have the CD and LC, hopefully there won't be any problems from having bought it on eBay.