Booked vehicle not available

We booked and paid for a Toyota Fortuner in November 2023 to be collected at 09.00 on Friday February 9th....... On arrival at the Woodford Desk we were advised that they had no Fortuners available!!!! We were 4 adults with 4 large suitcases, 2 small, camera bag, laptop bag as we were spending 2 weeks in Kruger Park..... We were offered a Toyota Cross which would be swapped the next day for a Fortuner.....there was no way ourselves and luggage would fit in that vehicle which was the reason we had ordered the Fortuner!!! It took more than 2 hours to locate a vehicle for us from the Sandton branch.....when it arrived there was not a full tank of fuel...obviously it had not been topped up..... All of this resulted in us having to negotiate the last part of our journey to Kruger Park in the dark on poor roads which created high stress levels......luckily we were not staying in the park otherwise we would have had to find a place to stay as the gates were closed by the time we arrived..... It is unacceptable that the vehicle we booked 3 months in advance was not available....clearly it had been given to someone else...... We did receive a small discount...far less than the cost that would have been incurred should we have accepted the Cross......This was raised with your Customer Care department but dismissed...... You really need to ensure that vehicles booked are available..... Overall not a great experience!!!!