when employees starts to lie

After I made an appointment for service at the istore in Tygervalley, I was told per telephone that I do not have an appointment. I was told that an appointment was not made with my details. I then lodged a complaint with the customer service help center. I was contacted by Ms Melissa Warren who then told me she will deal with my complaint. I was then called by the most *********** Operations Manager that Apple could possibly employ. He told me in a very nervous stuttering voice, that I missed my appointment and that he found my appointment. I will never employ anyone who can not apologise for his mistake and earnestly try to rectify it. He chose to put the blame on me for missing an appointment which I thought I made, which I called in for !! this is very disappointing. Apple needs to fire him!