We need the ability to charge a failed /unpaid payment balance due on a subscription within the subscription once the customer has updated their card details using the "share payment update link" from the subscription so that the payment charged will be associated with that subscription.
Right now GHL's subscriptions will make 3 attempts to debit payment, then will not try again until the next due date which leaves the balance unpaid. When and if the customer happens to update their card after the 3 attempts there is currently no way to charge them within the subscription they specifically owe or if we use the "charge now" option in Contacts no way to charge a payment and have it recognized as being a part of any specific subscription.