could you point to some documentation on this please?

I know almost NOTHING about the people mentioned below. They're just names that I happened to catch in the news about their accounts being closed or they came up in a google search I just did. I'm certainly not implying support for them or their ideas.

Some comic creator https://boundingintocomics.com/2019/02/21/chase-bank-shuts-d...

Some Proud Boys leader https://bigleaguepolitics.com/chase-bank-shuts-down-proud-bo...

In his most recent appearance on Joe Rogan, Alex Jones reported that he had an excellent credit rating and had several of his accounts closed. This is a statement of fact that, if untrue, the banks could sue for defamation. So it's likely true.

Paypal (bankish) has gone after "hate groups" https://www.foxnews.com/tech/conservatives-call-for-paypal-b...

Mastercard banned Robert Spencer (white supremacist) https://www.jihadwatch.org/2018/08/patreon-and-mastercard-ba...

So they are banning terrorists who have possible money laundering schemes. I'm OK with this.

Have any of those characters actually been convicted of money laundering or terrorism? I actually don't know. The only one I'm vaguely familiar with is Alex Jones, and as far as I can tell he's like a modern tabloid guy.