Unfaithful dealership

Had a pending deal on a used Mercedes Benz B Class, long story short, money was transferred to the dealership on the 25 October 2025, to this day I'm eagerly waiting MY REFUND from the 29th October 2025 till now! When I phone the dealership, I'm given lengthly explanations whereas my bank account has NO refund from the dealership. I hope someone had warned me NOT to conduct any deal with them