GP doctor clinic closes 9pm

i have 2 siblings who is autistic. My 31 years old has severe eczema on his leg and hand that skin peels off and bleeding. My younger sister 28 years old has swollen lip that skin peels off , bleeding and puss coming out. This is what i going to say, i reach clinic at 8.42pm. Reg counter do all the resgistration just asked to sit down. At 8.59pm, staff told me doctor cannot see because too many patients and doctor is tired. I just shared my concerns about my two siblings, i did infm the staff, i am going to write in. This is unacceptable excuses to say you are tired. Doctor came out, saying to me that i can write in, i dont want to see the because i have too many. I even asked, staff can let me know earlier so i dont hv to wait, i just go some where else. imaging bring my 2 sibling who is mentally challenges, and my 3 year child cannot keep still. I am tired, frustrated that as why such things happen like that. Doctor is jus unreasonable. The same doctor, my daughter has a high fever last year, clinic was still running with no patients, 8.36pm can hav the balls to tell me that i can see your child because its my birthday, i need to rush home. WTF seriously, i ask my SIL, i shared my concerns and frustration. i told her i want to write in Moh. She say you can feedback abt the staff and system. Not the part that dr is tired. Because its his own Private GP. He has every right. what every right, you should treat pt liks that seriously, i am really fuming seriously. what should i do.