Claims I requested for a service that would fix so...

Claims I requested for a service that would fix something on the car last time I went. I got it because I just got the car and he said it would fix the issue. I go in 1 week later to let them know it was not fixed and they want to charge me to inspect the issue and claim I requested the second service the first time out of the blue, they really made me pay for an extra service to fix an issue so I can go back a week later with the same issue and tell me I need to pay to have the issue inspected... Ouf