There's a fair chance you just got hooked in a kind of phishing scam: the one-ring or no-message call received. Being too curious for their own good, people call the number back and even without pressing any key to "remove your number from future surveys" you have probably told the scammers that your phone number is live and you are curious. A perfect target. As many people have said many times here, don't call back an unknown number. Not only might you get your number sold to scammers, the call can end up costing you money right off the bat.
No message...called number back - "The survey you are calling for is now closed, if you would like to remove your number from future surveys, please enter it now".
There's a fair chance you just got hooked in a kind of phishing scam: the one-ring or no-message call received. Being too curious for their own good, people call the number back and even without pressing any key to "remove your number from future surveys" you have probably told the scammers that your phone number is live and you are curious. A perfect target. As many people have said many times here, don't call back an unknown number. Not only might you get your number sold to scammers, the call can end up costing you money right off the bat.