I have used Turbo Tax for many year, but have always paid turbo tax directly for each return in past years.  

This year, I decided to purchase a block of 12 returns. I purchased the INTUIT TURBOTAX SELF-EMPLOYED ONLINE EDITION 2024, 12 RETURNS, BILINGUAL - ONLINE VERSION at Costco.ca.   Within an hour, I was sent an activation code and a link to the activation site.    I sign in  and when I enter the activation code, I get the "Something's not right, try re-entering your code." message.

I've tried entering the code directly on the payment site (coupon code), but it sends me back to the activation site, and continues to give me the "something's not right, try re-entering your code" message. 

I'm stumped, not sure why it's not working as I've followed the detailed instructions.  Does anyone have any suggestions?    

Thx.