I was here Saturday before work and while I was ordering my food the lady tried to up sell me on everything, which is fine but when I agreed to one up - size (small to a medium) she tried to charge me for large. I had to correct her but it didn't bother her any. After that I pulled up to the window and paid for my food. After she hands me my food she quickly turns around and walks away. I tried my hardest to catch her before she got to far but she just ignored me. I knocked on the window several times.... honked several times and just waited. I easily waited about 4 minutes before I Googled the phone number and called inside... I told her that I was still in the drive thru and I have been waiting here trying to get her attention. She laughed at me and I hung up. Finally she came back to the window and didn't apologize or anything. I received the items I needed and left. I will never return to this Carl's Jr again! Horrible customer service!