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Citi ® Payment Outlier Detection. Citi ® Payment Outlier Detection is a new informational analytics tool that can be used to help identify, review and stop outlier payments before they are processed. Watch Video

Citibank ® ACH. Citi has been providing high-quality Automated Clearing House (ACH) Payment and Receivables Solutions to our clients for over two decades. We offer a full range of solutions that include the collection of consumer payments via the telephone, Internet or check-to-ACH conversion, as well as payments to employees and vendors.

Payments by Regular Mail 1 Citibank / Choice P.O. BOX 9001037 9 0 0 1 0 3 7 Louisville KY, 40290 4 0 2 9 0-1037 1 0 3 7. CitiBusiness ...