A transaction system for coordinating processing of a transaction payment request associated with a transaction between a consumer and a merchant, comprising: a computer processor programmed for: receiving the transaction payment request including consumer code data and identification information, the consumer code data representative of a subaccount registered with a transaction interface; accessing the subaccount to obtain payment information related to the transaction payment request; creating a payment confirmation request using said identification information; sending said payment confirmation request over the network to a mobile device; obtaining authorization information from the mobile device; sending a funds transfer request to a payment platform based on the authorization information matching the required authorization information; receiving approval of the funds transfer request from the payment platform; and sending a confirmation of the approval of the funds transfer request to a computer device associated with the merchant.