[l-Date]
To:
[r-Name]
[r-Address]
From:
[s-Name]
[s-Company]
[s-Address]
[s-Phone]
Dear [r-FName]:
We feel there is a
reason why you have not answered any of our inquiries about your
overdue account in the amount of [s-CheckAmount].
If there is a
problem regarding the enclosed bill, please contact me at the above
number so that we can discuss the situation.
If this has been an
oversight, please make immediate arrangements to make full payment.
Thank you for your
cooperation in the prompt handling of this matter.
Kind regards,
[s-Company]
[s-Name]
[s-Title]