No. 4 Baker Street,
February 8, 2012
I am really thankful to you for lending me ($7500) at such a short span of time. I shall repay you the whole amount at the earliest, as you know I required money immediately (for operation of my brother as he met with the accident.)
I assure you that I shall repay you the amount at the earliest. Thank you so much for the timely help given by you.
Best wishes and Regards,