Only one promo code can be applied per order and must not be used with any other discount. This promo code cannot be used against products which are discounted or on sale. This offer is valid for online only on three.co.uk. The offer is a discount of 20% off the base price of handset airtime, contract SIM plans and Home Broadband plans. Subject to availability.

The discount will cease to apply if customer upgrades, changes plan, or cancels part of the order. The discount cannot be transferred if the customer’s account is subject to a change of ownership. The promo code cannot be applied to device finance products. See Terms & Conditions | Three.