Sample refusal letter to a birthday party invitation

Sample refusal letter to a birthday party invitation.

To

Mr. …………………

Address

Dear …………………,

Thank you for your kind invitation. I am sorry to say that I shall not be able to come to the party as I already have an engagement for that evening but I assure you my younger brother ………………… (name) will come to the party.

Yours sincerely,

……………………………… (Name)