Collection Demand Letter - Adversarial

[Your company name]
[Your company address:
Street
City, State, Zip]

Date:
[Debtor's name]
[Address:
Street
City, State, Zip]

Re: Account No.: ______ Amount: _______

Dear [Debtor's name],

Please be advised that as of the date of this letter, your payment for the package 21 has not been received and is now past due. Under the terms of the promissory note you signed, it was due on ______________. If you have already made your payment, please disregard this letter; otherwise, please send your payment immediately in order to avoid default.

Sincerely,

[Signature]

[Name],

[Title]