Hi! I've recently received a 25% off coupon code from Parallels because I filled in a questionnaire. However, in reality there is no such text box to apply the code anywhere on the page. I've checked it for multiple products and payment models and it just does not exist (I wanted to buy the Parallels Desktop 19 standard upgrade one time purchase). Is there some hidden page somewhere where I could use it, or did i misunderstand something?