UK Fintech Curve Partners Cardlytics to Offer In-App Rewards Program UK-based Fintech Cardlytics in order to offer an in-app rewards program. Through the partnership, Curve’s million-plus UK clients will be able to connect with Cardlytics’ 100+ recognized high street brands, such as Pret a Manger, JustEat, FatFace, Harvey Nichols and Cult Beauty. Curve customers will have the option to access exclusive offers of up to 20% cashback on high street and online brands. Introductory offers include as much as 20% cashback at Hussle and 5% cashback at Harvey Nichols and Cult Beauty. This new partnership has been announced as recent Cardlytics data, based on the purchasing patterns of over 12 million active UK bank card users, reveals that consumer demand for eating out and shopping for clothing items and homewares products increased considerably after the easing up of COVID-related lockdown measures on April 12, 2021.