What is the phone number for western union customer service? The Customer Service Phone Number of Western Union is: 1-800-435-2226/1-800-348-4883/1-800-325-6000 /1-800-877-8973. Western union is a financial service industry. The company was established in 1851.What is the phone number for associated credit union? Associated Credit Union Customer Support Service Phone Number. The customer support phone number of Associated Credit Union is +1-(770) 448-8200 / 1-800-422-7319 / 1-800-235-3259 (Click phone number to call).What is a credit union routing number? CREDIT UNION ONE ROUTING ABA NUMBER. 271188081 routing number is a 9-digit number designed and assigned to Credit Union One by The American Bankers Association (ABA) to identify the financial institution upon which a payment was drawn.What is union bank number? The Customer Service Phone Number of Union Bank is: 1-800-238-4486, 1-800-796-5656. Union Bank, erstwhile known as Union Bank of California, started services in 1996 as Union Bank of California.