Revolut offers banking services in various countries with various currencies. It is most heavily used in the EUR market, but has seen action in other markets increase as Revolut has expanded the markets it operates in.
Creating the account in Bisq
Remember that none of this information can be modified once an account is created, and account signing data can be lost if not properly backed up. If you edit your username, a new Bisq account should have to be created, unsigned and with 0.01 BTC trading limits.
On the bottom of your Revolut app, tap the two arrows symbol in the middle. Then, under your real name, there's a
@username. This is what should go into your account details, and what you should use to make a Revolut payment. Usernames are case-sensitive.