It depends on why the rebill attempt was declined. If fraud was detected, the consumer's account will immediately be cancelled. Otherwise, Segpay will try re-billing up to 3 more times over the next 9 days (re-trying once every 3 days). If the charge is still unsuccessful after 9 days, the account will be expired.
Note that failed rebill attempts do not alter a consumer's billing cycle. In other words, if a rebill attempt fails, the next billing date will be 30 days (or whatever the billing cycle is) from the date the rebill failed, not the date it was re-tried and succeeded.