Promotional codes (also known as coupons or vouchers) offer a credit to an advertiser's account. There's no way to ask for a promotional code, but MANTIS will occasionally give out promotional codes as part of specific offers.
This article explains the criteria for promotional codes and how they work with the various payment settings.
Most offers require you to meet certain criteria before the credit will show up in your account, and they're typically for new advertisers with new accounts. Be sure to check the terms that came with your promotional code for details about your offer.
For example, we might have an introductory offer like "Spend $25, get $50 in free ad credits." In order to get the $50 credit, you'll have to enter the promo code within 14 days of creating your account and then get at least $25 worth of clicks in your account after entering the code. After spending $25, you'll then see the $50 credit appear in your account within 5 days.
Note: We only count the amount you spend after entering the code. If you spent $25 before entering the code, that amount won't count toward your offer.
In order to use your credit, you’ll also need to have entered billing details in your account. Also, keep in mind that promotional credit is good for advertising only. If you cancel your account before spending the entire credit, the remaining balance can't be refunded.