Europcar poor service

made a booking online via travelstart to collect the car in Sandton and only for them to tell me that that my collection is in OR Tambo, went to the Sandton branch next to the gautrain on the 27 Dec and spoke to Candice whom said its fine i should comeback on Monday 30th Dec and when I got there i got staff members who were very unhelpful and just gave me the number to call ***, i then called the number and spoke to either Tebogo or Lebogang whom said i should hold while he contacts the OR Tambo and arrange something out for me around 12:30 and to my surprise he just transferred the call I don't know to where and then i kept calling and being sent from pillar to post until I got hold of Jade whom told me I need to collect by O.R. Tambo.

point is I made a booking with a confirmation that says i need to collect in Sandton but their system shows O.R Tambo if I wanted pick up location I would have chose O.R Tambo and the service is just overall poor and Terrible.last time i book a car with them.