To whom it may concern

Hi,

I don't understand what you mean. Write a draft and post it here, then we can try to help you.

Just say what you would say if you were talking to your boss. Use simple sentences.

Best wishes, Clive

This doesn't give the person who receives this letter enough information to do anything.

Dear Customer Service:

My name is Ebony Brown, and I have two accounts with you. The account number are *** and ***. I would like to close both of these accounts. [If there is any balance, you need to tell them how to handle it - do you want a check mailed to you, etc.?] If you have any questions, please contact me at ***-***-*** (this is where you should put your phone numer or your e-mail address.) Please let me know if I need to provide any other information.

Sinerely,

Ebony Brown