Unfortunately Chase forces customers to mail a letter with this information on it so there's not much we can do
In another comment you talked about starting another kind of bank? details?
tbh I'm not trying to use this as a platform for advertising but I'm happy to chat if you want to email me. zach [at] hmbradley.com
Open-source a script I can run locally to generate PDFs with the information your form uses.
I told them that I am rejecting the agreement to arbitrate. I also said that since their message portal feels official, this would be what I would use as proof of my opt out in court, if the need arises. I saved some screenshots as well.
They have updated me once already to say that they are still working on a response.