Is it possible to cancel registration?

I originally wanted to make a seller account to sell some used textbooks but after discovering how long the registration is and how I *have* to pay $40 for the first month, I decided to find somewhere else to sell since I don’t think Amazon is really the right place for a casual seller like me.

Now, I never finished the registration so an account was never actually made (I’m pretty sure I made it to the last step though). I tried to contact customer service through this link I found on the sign-in screen (https://sellercentral.amazon.com/cu/help/contact-us) requesting to cancel the registration but all I got was an automated message and my case was closed. I tried to re-open the case as the email suggested but I can’t because I don’t have an account.

I was wondering if this means I don’t need to do anything in this situation? If I do need to do something, is there any way I can personally contact someone? Any advice is appreciated!