WHSmith Communication Go to / Join Merchant Written by Riccardo on May 30, 2019. Posted in Programme Launches Dear affiliates, WHSmith has a new offer to share with you AN EXTRA 10% OFF AT WHSMITH.CO.UK WITH NO MINIMUM SPEND - OFFER ENDS AT 23.59 TUESDAY 4TH JUNE 2019. USE CODE: PAYDAY10 Happy Promoting, WHSmith Affiliate team