BMW's Broken Promises and Skyrocketing Prices

In January, I paid a deposit on a car. They told me it would come by April or at the latest May, so we sold our own car in February. We bought the car for 2,700,000, but on May 20, they suddenly wanted 3,119,000 TL. I reluctantly said yes. Fast forward to June 14-15, and they tell me that the car now costs 3,506,000 TL and has arrived. What a big surprise! So, I've had enough. They must think that money grows from trees. They've been promising to return my 100,000 TL deposit for a week now, but I'm still waiting. Can you believe that they were so careless and didn't care? I recommend that you never, ever order a vehicle by trusting BMW!!!