We have all experienced it; your own registrar proposes a great domain offer, for example a .bio domain for 20€ instead of 60€, if you register within the promotional period. A great offer which you would like to propose to your own clients, but at night after a hard day’s work you forget to re-enter the original price. The customers are happy because they can secure the deal for an even longer period, but after the promotional period, your registrar demands the original price from you, in other words for each cut-price registration, you pay the original price.