All of the following activities are grounds for disciplinary action against a licensee EXCEPT?

The activity of issuing a promissory note for a home improvement project does not inherently lead to disciplinary action against a licensee, as this practice can be a legitimate part of financing options available to clients. Promissory notes are often used as a method for individuals or businesses to secure loans or financing for various purposes, including home improvements. As long as the issuance of the promissory note is conducted within legal parameters and ethical guidelines, it is not considered a violation of regulations governing home improvement salespersons.

Conversely, the other activities outlined in the question involve serious violations of conduct expected from licensed professionals. Failing to complete work as agreed could lead to claims of breach of contract and undermine consumer trust. Misrepresenting the cost of services can be seen as fraudulent behavior, leading to loss of reputation and legal consequences. Violating building codes not only compromises safety but also may expose the licensee to legal liabilities and further disciplinary measures from regulatory bodies. Understanding the implications of these actions is crucial for maintaining professional integrity in the home improvement industry.