Dahlia, I do appreciate that not all receptionists are dragons, and there are indeed some very helpful and kind ones, who have been good to me. The pressure when the phone lines open, must be very high.
However, there are still those receptionists who find it very difficult to be pleasant and civil, despite being spoken to with civilty and politeness.
I have complex medical conditions and used to dread phoning for an appointment or advice.
What finished me off was I had an emergency appointment one Saturday morning for a chest infection and a severe asthma flare up. It had started during the night, with little warning and I was deteriorating by the hour.
I overheard one receptionist, discussing the couple of patients (including me) in the waiting room, saying: Nothing much wrong with that lot, just couldn't be bothered trying to get a weekday appointment! What a lot of hypochondriacs. 
I made a point of informing the doctor when I saw him.