Here's how to apply a code to your upgrade:
- Head to Settings > Plans & Billing > Choose the plan that works best for you > Upgrade
- Click "enter promo code"
- Apply your coupon code in the "Promo" submit box.
- Enter your payment details
- Select the "Pay Now" button.
Choose the plan that works best for you and select "Upgrade".
A payment page will pop up.
Make sure to click the "enter promo code" and input your coupon code.
Contact Polymail and we would be happy to help you out!