Will my promo code work if I use bonuses? September 06, 2019 14:18 Updated Follow Yes, your promo code will apply regardless of whether your payment is covered by referral program bonuses or not. Related articles What is Crello referral system? How do I use Crello referral system? Where do I find Crello IOS app? How do I sign up for a referral program? Do you offer special rates to non-profits? Comments 0 comments Article is closed for comments.