"No acknowledgement"

My GP advised me to go upto arrows park a&e due to blood clot in left leg and now new symptoms causing onset of blue/grey colouring to my left hand with some associated arm pain! Got to a and e for them to tell me to go to the walk in! Got seen by triage nurse who advised I will need to be seen by a doctor! They made a phone call while I was sat there and said an appointment at 6pm was advised to sit back in the waiting area and the doctor will call me through! Come 7pm still nothing with plenty of people coming and going! Asked receptionist how much longer (as I have 2 kids at home) the same receptionist who booked me in said I never told them I had arrived?? I asked what they meant as they themselves had booked me in but was told not an issue! No apology no acknowledgement, never even looked at me and just dismissed!