This is also a common pitfall that young people frequently encounter while job hunting: during recruitment, they are told one thing, and yet when they start working, it's a completely different story.
It's crucial to remember that recruitment is merely an invitation to make an offer. What truly matters is the labor contract, the employer's explicit commitment, which is the kind that comes with chat logs, recorded calls, or written promises.
Actually, these types of cases are quite common. In most instances, workers lose in court because they can't provide evidence. Why? Because the promises made to them were verbal.
Workers with even a bit of experience know that verbal promises aren't worth much. If the employer decides not to acknowledge them, they simply won't, understand? Don't assume the best in people, thinking they won't be so shameless. In reality, they can be very shameless.