Payments will be released based on Early Pay date of the deal. Usually within 24-48 hours.
If you do not want to receive Early Payments on your specific invoice, you can simply ignore the Early Payment offers and you will be paid on your existing term with the customer
Your existing payment terms with the customer will not be changed. Just that, you now have an option to receive early payments based on your working capital needs.
You can cancel the subscription anytime.