Phone rang three times, caller hung up and left no message!!

They have been calling my cell all day. How do make them stop

Foreign voice. Only asked for how many visa and mastercards we had told her none. She then said oh you must have one of those debit cards then. At which point I hung up. No identifying company.

They've called twice now, both times asked for a random name (Ryan, Christina) and when I said they had the wrong number, the woman says, "Oh, well maybe you can help me..." And launches into a spiel. Which is when I hung up. The correct reply to "I'm sorry you have the wrong number" is "Oh, I'm sorry to bother you." Rude.

I've received 3 calls from this number on my cell phone. I haven't answered the call, figuring it was a wrong number.