Англійські шаблони листів Customer Letters

Dear (recipient's name),

Thank you for informing us of the error in your (month)'s bill. We apologize for the error and any inconvenience this may have caused you. Please accept our apologies.

Please accept this coupon for (item) to make up for our error.

Sincerely,

(your name)

Dear (recipient's name),

We apologize for the error in your recent statement. This is obviously a mistake on our part, as your electric bill is not $(amount).

We have corrected the error and are sending a new statement to you immediately,

Sincerely,

(your name)