Avis left me stranded after false promises and no vehicle provided

I had a confirmed booking in the Group F category and was contacted by Avis head office, who assured me that an Audi Q3 had been prepared for me. Based on this confirmation, I went to the branch to collect the vehicle. Upon arrival, I was told that there is no Audi Q3 available. Instead, I was offered a Mitsubishi vehicle, which I had already clearly declined telephonically before coming in. This means I was misled into coming to the branch under false pretenses. As a result, I left without a vehicle and am now stranded, unable to collect my children from school without arranging alternative transport at my own cost. This is unacceptable. I expect: Reimbur*****t for the Uber I now have to request due to Avis’ failure Immediate provision of a vehicle in the correct Group F category as originally booked An explanation as to why I was given false confirmation by head office This experience has caused serious inconvenience and stress, and I expect urgent resolution.