How to convince the university to approve the appeal?

Hi, I am pursuing my master's degree in UK. I am an international student.I failed in my Reassessment of a module in second semester. I have passed all other modules. I got an E grade in my reassessment. The university have discontinued my enrollment. The only option i have is appeal. I can appeal only once. I am really stressed. My future and my family's future depends on the appeal. Can anyone help me about this. Can someone tell me like how to convince the university so that they give me an another chance. Please help if you can.Thank You