Yep, pressing any number to be removed guarantees you many, many more calls since you confirmed a working number and that someone is answering.
Other
Recent comments:
11
Jul 19, 2016
Just had a call from this number - unknown - no message left. I agree with BigA, don't press any buttons. It just confirms your phone number as being active and a possible "sales lead".
Other
12
Jul 27, 2016
Received call today from this number 206-307-0541 they did not leave a message. I would like to block this number from calling.
Other
13
Jul 27, 2016
Seattle WA. Unknown caller. IGNORE and BLOCK.
Other
14
Jul 28, 2016
Same drill. They call, I don't answer, they don't leave a message. Sigh.
Other
15
Aug 3, 2016
Has called me daily, but does not leave a message. I have now blocked the number.