I had never heard this, but it seems like the proof that he was banned is based on a single book called "The Grifter's Club: Trump, Mar-a-Lago and the Selling of the Presidency" according to CNBC.
The thing about random quotes in books or legal filings, is that they may or may not be true. The case from 2016 involving a Jane Doe and Trump/Epstine made a lot of allegations ... yet Katie Johnsonm, the person who filed this, was never interviewed and dropped the charges.