Zizzi Referral Code page. Welcome! Enjoy and share Zizzi referral links on this page. Fan of Zizzi? Make sure you give them a thumbs-up recommendation - influence friends, followers and others. Zizzi is an Italian restaurant group with 140 restaurants across the UK & Ireland. Experience great food in uniquely designed restaurants. ReferralCodes has found you a Zizzi referral code discount!