Big company, convenient pickup

The car I booked was unavailable, so they gave me a smaller one that was more expensive. They didn't inform me in advance, and there wasn't enough space for everyone. When returning the car, there were no staff, took me two hours to find someone.

Average

If the customer forgets the credit card with their name, at least allow them to use a debit card with their name or the credit card of a companion in the same car. Due to this reason, I paid nearly 1000 yuan and couldn't use the car. If the car cannot be used, even if a full refund is not possible, at least a partial refund should be provided! Just like buying goods, when money is paid, service should be provided. If the service is not received, shouldn't the money be returned to the customer?

When I returned the car, I was asked where the back tray is, and telling me I will have to pay a fine, since it was missing. I answered it wasn't there when I picked the car and the guy said I should have mentioned it when they gave me the car. A part which you cannot see is missing. eventually they "let us go"...