Mission to get final invoice for car rental

-No final invoice received. -because I figured out that Incorrect email address loaded on their system. -Spelt my surname incorrectly. Call to the Gautrain station outlet as listed on the website, the agent says that I'm a the wrong branch but will email the invoice without double checking if he has it correct. & he says call Sandton Eye as that is where I hired the vehicle. My reservation says Gautrain branch. The website doesn't have Sandton Eye contact no. When I call them to confirm the email address, & find that they have incorrectly added an extra E to my surname on the email address, the "fancy" agent thinks she is talking to a travel agent & insists that I talk to her in "a=alpha, b = beta" lingo. I am promised the invoice as soon as she is "finished with the customer in front of her", which I find extremely disturbing as she shouldn't be on the phone with me while serving a customer face to face. Further, Europcar charge for a full days rental even if vehicle is only 1 hour late, which equates to 23 hours extra profit as per their t's& c's