Sounds like the only harm done to you is some unpleasant emails, and some phone calls that were also rather unpleasant that you initiated. Their automated systems and support seem rather terrible(unfortunately normal). You might have just sent these bad automated emails to your spam folder and been just fine.

Everything else is based on some imagined harm that might or might not come to you or some other imaginary person at some point in the future.

I used to get worked up about stuff like this but now I ignore it and my credit is pretty much perfect still. My mental state is much improved.

I might be not understanding the situation completely though.