§ 240.12 Checking customer's use of payments.
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
The seller should take reasonable precautions to see that the services the seller is paying for are furnished and that the seller is not overpaying for them. The customer should expend the allowance solely for the purpose for which it was given. If the seller knows or should know that what the seller is paying for or furnishing is not being properly used by some customers, the improper payments or services should be discontinued.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.