The waiting game for a lower grade of car

Pick up from the airport was ok. When we got back to the office we had to wait 20 minutes as only one staff member was there and another customer was being looked after - that meant the whole pick up process took almost 45 minute from arriving at the offices to leaving the offices. The corolla we wanted and booked wasn't available so we were given an equivalent car we were told from the same class- however it was a 1400cc car not the 1800 cc car we booked- I dont believe they are the same class of car with a much smaller motor. We were offered a corolla but told had to wait 30 minutes - then after 30 minutes were told the corolla was not available as they only had a newer car and we needed to pay more to get it.