Dental Specialist

I have been to this place a couple of times. Recently i went for a 7 am appt. I was not taken back until 7:40 and by that time they only did some x-rays and needed me to reschedule to do a cleaning. this time the appt was also at 7 but i was running a little late. They called me at 7:10 and told me that i would need a different appt. I told them that i was 5 minutes away and they said it wouldn't work. they also told me i couldn't have any other 7 am appt times because they fill up fast and since i had missed one they couldn't schedule it for me. Terrible Customer service