National Tire & Battery [NTB] review: wait time and attempt to accept payment for services not rendered

I scheduled an online appointment for 9am today for an oil change and tire rotation. I waited and was advised at 10:20am that my vehicle was done. I inquired how they were able to find my wheel lock to rotate my tires without asking me at which time the cashier relocated to the mechanics and informed me that my tires were not rotated at all. I informed the cashier that I didn't appreciate being charged for a service that was not done and had an appointment scheduled for 11am for something else at which time he instructed the mechanics to rotate my tires. Needless to say, I was just about late due to their failure to render services that I was charged for and would've gotten away with it had I not remembered to ask about my wheel lock that was essential in removing the tires for the rotation. This is totally unacceptable!