Suppose a collection business is contacting you too frequently. In that case, you can use the following 11-word phrase to stop them in their tracks, “Please cease and desist all calls and contact with me, immediately.” The request should be made in writing to comply with the FDCPA. It’s important to note that stopping phone calls doesn’t mean you don’t owe the business. Depending on the circumstances, they can still potentially sue you for what’s owed.