Twitter Improving customer loyalty and retail experience through mobile payments https://t.co/3k12wdfqxQ @GfK #mrx https://t.co/AvFNi3fzVM Improving customer loyalty and retail experience through mobile payments https://t.co/3k12wdfqxQ @GfK #mrx https://t.co/AvFNi3fzVM Jun 21, 2017 1 #mrx