Try not answering unknown calls-they only continue to call because you continue to answer. Also do not call them back-by doing that you are probably getting more calls.
Robo caller claiming my car warranty is expiring and this is my final notice, then asks if I would like to speak with someone. I said yes, then it takes you to a prompt asking you to push 2 to speak with someone or push 7 to be placed on the DNC.
Same script as noted by Keith, above. However, I just kept silent after the invitation to speak with someone. After 15 seconds or so, it went to the next prompt to either speak to someone or be placed on the DNC. I still silently stayed on the line until it disconnected after about 30 seconds.