They could not provide the car I booked

They assigned a Fiat, which is quite spacious and decent overall. The rental process was straightforward; I thought it would be complicated, but it turned out to be simple—just go, complete a quick procedure, pay, and pick up the car. During pickup, they gave a brief explanation of the car's condition, which was fine, but as a first-time renter, a more detailed introduction would have been helpful. However, I figured things out on my own later.

Good.

The store staff were very serious, but my 250 euros deposit was supposed to be a guarantee, not an actual charge. However, they charged me and refunded after the return, which caused a currency exchange difference that I had to bear.