The programme allows eight million Barclaycard cardholders to collect instant cash rewards for using their Barclaycard when they shop.
Petrol station operator, Shell, is the latest partner to sign up to the scheme and joins Npower, Pizza Express, LA Fitness and Yo! Sushi among others.
Barclaycard cardholders will earn 1% of purchases at participating outlets alongside other in store promotions and discounts.
Customers will see the value of their reward on the chip and pin card machine before they pay and will have the opportunity to redeem some or all of money in that transaction.
Cardholders can also track their reward money online through mybarclaycard.
Barclaycard has set up an SMS system that allows cardholders to access a list of participating retailers and offers on the move.
Point of sale materials will promote the scheme in stores.