Where to enter a discount COUPON? Olivier Zetlers April 29, 2018 16:30 Follow On the payment page, look for the "Coupon field" as shown below. Related articles How to downgrade my plan? How can I declare legal sources for my content? How many pen names can I use? Some blasted webpages don't show any relation to my content. Is something wrong? How to use Blasty Full Power in 2 min Comments 0 comments Article is closed for comments.