If you pick up an unknown caller and there is no one answering, just keep hitting ##### and this is supposed to delete your number from their system. Don't know if it really works, but its worth a try. I get about 4-5 of these type calls daily even though I have registered with the do not call bureau.
Its not a LEGAL "Survey." LEGAL SURVEYS are the one that they do and then report in publications and on the news for scientific RESEARCH like how people are planning to vote, or how many have gotten sunburned in the past 10 years, etc.
This 'survey' IS A RUSE to attempt to get around the DNC LIST LAW for TELEMARKETING purposes. That STILL makes these calls ILLEGAL.
And, what's worse, these cruises are SCAMS, as well. "Yous pays yo' money and yous get not-ting."