Rental agreement in another name,wrong bill etc

On 27/10/15 my fiancee & I rented a car from Budget Cape Town Airport Office.In an attempt to extend the booking over the phone, we were unable to get through to their office number the entire day and ended up having to drive to the airport just to make an amendment to the booking.Who runs a business on a malfunctioning phone? <br> <br> We returned the car on 29/10/2015 at the agreed time and refueled at the service station by the airport.Upon returning the car, the car was examined for damages and checked if refueled.<br> <br> No deposit refund was received and decided to give them a call.I attempted to call them all day and finally after getting through to them, I was informed that the booking number I provided was wrong.I have the call recorded and have details of the other client who my booking code was linked to.I expensed on Uber rides to get this mistake fixed.I got a refund but was overcharged and Tanya made empty promises that the manager will call me. <br> <br> Think twice before renting from Budget or Avis,phones don't work and you can pay for someone else's rental agreement and no-one gets back to you.Worse more,you will spend double rental cost rectifying their mistakes. ********** service.