Answer:
Dear [Your fahter's bestfriend name],
I hope this letter finds you well. I am writing to you today with a very heavy heart. My father, [your father's name], was recently diagnozed with [his illness] and has been hospitalized for the past few days. He has been receiving excellent care, but the medical bills are mounting and I am feeling hard to keep up with them.
I know that you and my father have been friends for many years, and I hope that you will be able to help me out in this time of need. I am asking for a financial support of $[amount] to help cover my father's hospital bill. I know that this is a lot of money, but I am truly desperate.
I have been working for two jobs to try to make ends meet, but it is really not enough. I already have exhausted my savings. I am also worried about the way I am going to pay for my father's ongoing care once he is released from the hospital.
I have enclosed a copy of my father's medical bills with this letter and have included my contact information and bank account details.
Thank you for your time. I am looking forward to hear from you soon.
Sincerely,
[your name]