Trouble upgrading and discounts

rasterdogs

Can anyone tell me how I can avail myself of this as described on the agile bits blog:
Launch upgrade sale price for website customers who bought before 2013: $24.99 – that’s $10 off our regular upgrade price of $34.99, and $34.99 for the family pack (half price from the regular upgrade of $69.99!
When I look in the agilebits store I don't see anyway to access this.
Help
-rasterdogs

roustem

Please make sure you click on "Upgrade" button: https://agilebits.com/store/upgrade?product_id=109

You will see the prompt to enter the existing key.