American Express said it would eliminate 550 jobs but impact 3,500 in a restructuring this year

. "The decision reflects an overall decline in service volumes as more and more routine transactions have migrated to online and mobile channels," according to a company statement. Amex said it would close a Greensboro, N.C., customer service center and move work to three existing facilities in the United States. It also announced plans to move work from a Madrid, Spain, service center to Brighton, U.K., and Buenos Aires, Argentina, and service support for the Japanese card business from Sydney, Australia, to Japan.