Can I apply a promo code to my trial plan? Qasim May 08, 2020 03:45 Updated Yes. You can go to the Premium Billing page and use 'Apply promotion code' to add a discount to your chosen plan. Related articles How can I sign up for a Premium subscription trial? Why do I need to add my credit card if its a free trial? What happens when I run out of free trial downloads? What do I get during trial? How do I cancel my trial?