I've been working a sale and this co. won't stop h...

I've been working a sale and this co. won't stop harassing my client even though both of us has told them my client is going with a different lender. They continue to insert themselves into my client's affairs and have given horrible advice. The advice they gave goes against real estate license law in my state and may have cost my client thousands of dollars and may be sued. The loan officer calls me and when I can't pick up they call multiple times in a row even though I am obviously busy. They don't care about the interests of borrowers, but only their own in obtaining the business. Horrible and shady business practice. Please do not let them near your mortgage loan process!