You should be talking about Dantown platform where Sabinus is their Brand Ambassador, where they promised free withdrawal and deposits, something like that, I don't trust them with that advertisement with such statements, it's a word that'll lure users into downloading the app and start seeing high charges in every transactions. Never check on the app though.

Nothing should really be free to me, everything should be charged, if it's free how do you think company will be running the business, pay workers and even upgrade the platform with latest technology and software.

I don't use conversion anymore since I noticed the charge is higher than using Buy/Sell trade button. It's the same coin swapping thing but different charges apply.