Generic Code Extension At Crocs UK Written by Optimus Performance Marketing on January 6, 2014. Posted in Awin, Fashion, General Promotions, Offers/Promotions, UK, Voucher Codes Crocs UK Affiliate Newsletter News | Promotions Generic Code Extension At Crocs UK Crocs are pleased to announce they have extended their current generic code for January: Code: CROCS5 Promotion: 5% Off Expires: 31/01/2014