Europe Car Lanseria Charge amount differs from actual amount and i am not talking about the extras.

Really bad service from Europe Car Lanseria! The booking amount through my Discovery app and the actual amount differs. I booked a KIA and the car was not available at that moment so they gave me a "Free" upgrade. ****** ******s. Rather support thee up and coming small companies who would rather go the extra mile and still earn their money. Really useless Europcar...