Sonic Drive-In

I went through the Sonic in New Braunfels on Loop 337 a person named Gage took my order it literally took 7 minutes to provide an order of a hot dog onion rings and dr pepper. He first state that I could not do this as a combo which I was not. Secondly he said french fries which it was onion rings. Then he said I could not get a drink other than medium which I guess is because he was doing as combo. He then said ok hot dog onion rings and powerade and I said I never order a powerade then he took about 2 minutes while I am on my lunch hour (two cars pulled out that were behind me bc of wait time) then I said can you repeat my order back and he said hot dog onion ring and powerade. I said I am not getting a powerade it is a dr pepper. Then he said it would be $10.82 and I said how is that when the hot dog is $1.99 then he gave another amount of $6.82 which was wrong also. The girl brough my order to the car and it was a chili cheese dog which I did not notice until I got home I do not eat chili cheese so I had to throw it away. The onion rings were ok not great and the drink was a diet dr pepper I feel like this was done on purpose. The girl took my receipt so I do not have my receipt which I did not notice until now as well