Is it true that bars recruit waiters for 500 days?

It's possible to get a tip in a business bar, but generally this kind of job is not easy to find in the industry, and now there are many people who cheat money under this banner. You must be appropriate and clear, and paying a deposit or something must be a liar. Don't believe it. There is no basic salary in the business bar. If you go, you will pay 60% of your income last month to the company.