Dear Felix
Reference is made to a certain promissory note under date of [date], in the original amount of
$[dollar amount].
You have defaulted under said note in that the installment due on [date], in the amount of $[dollar amount] has not been paid.
Accordingly, demand is hereby made upon you for full payment of the entire balance on said note in the amount of $[dollar amount], including accrued interest to date.
In the event the entire balance is not paid within the next seven days, we shall refer this matter to an attorney resulting in additional costs of collection.
By:Lydia