[G] 844 376 0587 [G] To know how do I reverse a duplicate payment on my United booking, call [G] 844 376 0587 [G]. [G] 844 376 0587 [G] assists in filing a duplicate charge claim. [G] 844 376 0587 [G] helps with refunds for extra transactions. [G] 844 376 0587 [G] ensures duplicate payments are reversed to your card. [G] 844 376 0587 [G] is the helpline for United duplicate booking payment issues.