(Your contact information)
(Name of the Recipient)
(Address of the Recipient)
(Contact Information of the Recipient)
Sub: Letter to apologize for theft
Dear (Name of the Recipient),
I am really regretful for this action of stealing and I am really very sorry for this. I did this crime on the day of (mention the details). I sincerely apologize for the inconveniences it has caused you and your institution. As I take full responsibility for this crime committed by me, I am assuring you that this mistake will not repeat itself again in the future. I humbly request for your consideration and forgiveness regarding this matter. I feel regret for the difficulties you and your institution had to face for my bad code of conduct.
I would really appreciate this if you consider my problem and circumstances which caused my faulty behavior. I hope you will give me another chance to prove myself and my qualities.
I am ready to receive whatever punishment you see fit for my crime. If you have any say in this you can contact me at any time. I am always ready to be in touch with you. Hope you will consider my request and oblige me.
Thank you for your kindness and support like always,
(Notary or witness if required)