Called me on my cellphone. No message left.

I'm on the National Do Not Call Registry, and I continue to receive sales calls from this number informing me that I have won a cruise to the Bahamas if I take their survey. I suffer through the entire call, then "Opt Out" of future calls each time. They still call back. I believe they are in violation now, and I'd love to know how to report them. If anyone can help me, that would be great!

"I suffer through the entire call, then "Opt Out" of future calls each time. "  Thus guaranteeing yourself even more calls since you have now confirmed a live number with someone who will sit through all of that.  They were in violation on the very first call since there is no cruise, you didn't win anything, and they will tell you that you need to pay for something to get this fake cruise.

It is extremely easy to find where to report DNC calls by the simple use of a search engine.

DNC Complaints:  https://complaints.donotcall.gov/complaint/complaintcheck.aspx

Also file a complaint with your State Attorney General's office.
List of State AG’s offices:  http://800notes.com/faq/attorney-general