"The worst experience I’ve ever had "

I was sent to epsom Hospital to urgent care unit by 111 doctor because I had very bad back pain. I was told I had to be there before 6pm and I got there at round 5:30. It got to 7pm they told me they’re closing and I need to go to a&e. while other patience got to stay get seen. I had my 11 year with me. We had to wait til 2:30am without getting seen because my son was too tired by this time.i kept asking how long to go was told there only 1 doctor. Some of the staff were very rude I will never go back there again