Can I use more than one promotion code on an order? May 05, 2021 04:47 Updated Follow At this time, only one promotion code can be applied per CalvinKlein.com.au order. To redeem a special offer, enter your promo code while in your shopping bag or during checkout. Related articles How do I become a VIP customer? Will the product that I order be available? Do you offer Express Shipping? What’s your return policy? How do I unsubscribe from your email list?