The Information Commissioners Office has fined American Express Services Europe Limited 90,000 for sending more than four million marketing emails to customers who did not want to receive them. The emails included details on the rewards of shopping online with Amex; getting the most out of using the card and encouraging customers to download the Amex app. Amex rejected its customers complaints saying the emails were servicing emails and not marketing. During the investigation the ICO found that Amex had sent over 50 million of what it classed as, servicing emails to its customers.”]