That's got me thinking. I suspect it might. The psychology behind it form me is not to be getting a worse deal than everyone else. If everyone else can enter a discount code, then I should be able to as well.

But if the code is targeted at a specific set of customers that I know I don't fall into, then I would probably overlook.

Things like:

- Student discount

- Over 60s discount

- Job seekers discount

But finding the right label that doesn't offend, and right way to validate the authenticity of the customer's eligibility, is no trivial task.