It took a global pandemic for the California DMV to finally start an email ticket system. It is hands down so much better than going in to the DMV and has to be way more efficient for them. You simply fill out a form and you get an email with a ticket number. They respond within 3 business days asking you to send images of documents or whatever is missing. A comparatively pleasant experience.
This would provide the customer with a written record which could be used against the corporation. Phone is generally favorable to the corporations because the corporation can decide whether/how to retain/destroy records, but the customer will almost never have a transcript or recording to use for their own evidence.
Many corporations have moved to a system where you can either call an automated line which does its best to make you hang up...or you can fill out a browser form which provides the customer no ticket/confirmation number/email/any record that you ever filled it out.