Delayed Appointment without notice

I set an appointment for 13:45. Arrived in time, they sent me from pillar to post as I came for a COVID-19 test. I waited until 14:45, which was an hour later. I was not informed that my appointment was delayed. I then asked the Receptionist on duty why the doctor has not called me in yet, and I was told to wait a bit more as he still with a client, however, I would be next. I took a seat, and the Doctor called in another patient and skipped me. At this point everyone who was there when I arrived have left. I waited a bit longer. I was called in at 15:07. I received no apology for neither the Doctor nor the Receptionists. I had to wait from 13:45 until 15:07 only to see the Doctor for less than 10 minutes. I am very agitated, as I had set up an appointment to avoid waiting for longer periods of time. This puts other patients at risk, as I was waiting so long at Reception. Highly unprofessional especially in the healthcare sector. Patients should not have to wait over an hour when an appointment has been set and confirmed.