Thanks. We tried really hard to make sure that the site was clear and that any questions were answered before subscribing.
I included the coupon field because it's an option within Stripe. I just wanted to be thorough from the gate. I may issue coupon codes in the future for various events.
If I do, you'd be able to use one and it'll adjust your subscription price moving forward (there's a field in the billing section of the user dashboard that would allow you enter it in).