Answer:
If the business is resubmitting the item as an RCK, NACHA rules prohibit the item from being submitted for any amount other than what is on the source document. Similarly, your state's Uniform Commercial Code would prohibit the altering of a dollar amount of a check. If the business wishes to attempt to attempt to deposit a check of lower value from this client, it must obtain a new check.
First published on BankersOnline.com 9/3/12