You are buying a house not a toy or something you can return. Anything you did not feel comfortable don’t sign the contract.
To buy a house, you need spend more times, and with more than one agent. According to what your said, that is only business talking. Most time, there were no other offer – the saler’s agent just wanted to get more money.
Not every thing can be settled by court. You need time, money + evidence to win, according to what you said, you even had no case.
Never buy a house in rush, otherwise the house would be a nightmare for the whole family.
Good luck.