Late fees September 11, 2019 18:29 Updated Follow Our late fees vary by state and product. If you want to find out what fees apply to your payment plan, you can reference your promissory note in your email or contact us here with your details. Related articles See my payment plans How can I pay? What if I can't make an upcoming payment? So, Scratch pays the vet immediately and I pay Scratch in installments with interest? Payment reminders Comments 0 comments Article is closed for comments.