JUMP TOGateway APIOverviewSecurityPaymentpost3D Secure and other 2-step payment methodsAPI: Running test transactionsCapturepostRefundpostChange subscriptionpostUpdate Payment MethodpostCancel subscriptionpostError codesSubscription APICancelgetReactivategetRefundgetSubscription statusgetExtend SubscriptiongetChange username and passwordgetS2S Sign-up (One-click Initial)postReporting APIReconciliationgetChange subscriptionpost https://secure.vend-o.com/api/gateway/change-subscriptionThe Update Subscription API can be used to change the next rebill date, the rebill amount, the rebill duration
