they call me everyday 3 times speaking Spanish, when I call back there is a sarcastic voice message saying I will make money from you leave me a nice msg. I want them to stop because it is getting on my nerves
If you're giving them some sort of answer (machine, voicemail), they'll keep calling and calling and calling and calling. A live voice is what they're after most. Punch them out by giving them a number with no kind of answer and be patient. It does work eventually.