Banking is heavily regulated , you are protected by hundreds if not thousands of laws.
For digital services ? Twitter and Google can legitimately suspend ALL your accounts because you liked a Trump video on YouTube or Tweeted something « Hateful » to Biden.
You can try to go court. You will loose 100% of the time. They are private businesses operating within their own terms, there is not « false » flag or wrong « ban »
They’re private businesses offering a free service, they can cease to offer that at any moment that they want.