Why doesn't the birthday discount apply to addons?



I would like to take advantage of the 30% off sale, and I understand it doesn’t apply to “custom and express jobs”, but add-ons don’t seem to be getting the discount either? What’s up with that? I’m interested in purchasing a job with two add-ons that add up to $100, but I only see a $15 discount using the code. Seems like false advertising.