The greedy dealership

This dealership advertised a car for a certain price on which I was happy with and I had a mutual agreement with the sales person ,upon telling the salesperson I’m going to the bank to to sign the agreement to purchase ,he then said he’s finance team wants to sell me the vehicle with a new increased price and not the initial price which they advertised the car for. The salesman said he will not give me the car for the price they advertised the car initially when I approached them and that they will only give the car to me unless I pay the new increased price and that I must ask my bank to redo the finance for the new price and the salesman said there’s nothing he can do . Out of pure greed I was forced out of purchasing my first car , wasted more than 2 leave days dedicated to getting the purchase of the vehicle done , also having to cancel a flight ticket booked to pick up the vehicle which is non refundable in cash