Help In English Please

[Fatemah]

Hi everyone, I hope you are doing well. Anyone can please porrofread my email which i have to write to my university if they can refund some amount of my fees.
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Dear Sir/Madam,
I am writing this email to inform you that I’m a student in University of Siegen and as an international student I have to faced many challenges including financial issues.
I just want to draw your attentions on my financial situation which is not very satisfactory at this moment. My father has passed away and after him the main support of my studies is my sister, and she also got married recently and further she cannot help to finance my studies. Currently I am not doing any job because of my busy study schedule.
I would like to request you if possible could you please return/refund my fees so at least I can manage few of my expenses.
I have filled the ASTA form and I have also attached all required documents which were mentioned in the form. But still if anything is missing please do let me know I will try to provide you as soon as possible.
Thanks and regards,
ABC

[Buenchico]

Your English is generally fine but the whole thing could do with shortening. e.g.

"I am an international student of the university and I'm currently experiencing financial difficulties due to family problems (including the death of my father, who was helping to finance my studies) and my inability to find paid employment that fits in well with my studies. I am hoping that the university might be able to assist me through the refund of some of my fees.

I understand that I need to submit an ASTA form, which I've attached to this email (along with all of the documentation mentioned therein). Should you require any further information or documentation from me, please advise me as soon as possible and I will, of course, provide it swiftly."

[bookbinder]

Dear Sir or Madam,
I should like to inform you that I am a student at the University of Siegen, and, as an international student, I must face many challenges, which include financial issues.
I should like to draw your attention to my financial situation, which is not very satisfactory at the moment. My father has passed away, and, following him, the main support of my studies is my sister. She was recently married which means that she cannot help to finance my studies. At the moment, I am not in paid employment because of my busy study schedule.
I should like to ask, if it is possible, could you kindly refund my fees so that I could at least manage to deal with a few of my expenses?
I have completed the ASTA form, and I also attach all the required documents that were mentioned in the form. However, if I have missed anything out, please let me know and I shall try to provide the missing items as soon as possible.
Regards,
ABC