Here's a website which contains some good examples of Cease Communication Letters. Just select the one which is appropriate for your situation, fill in the blanks and send VIA Certified Mail. Request a return receipt and keep copies of everything.
I keep receiving the same call, keep on telling them they have the wrong number and to remove my number from their list, they say they will but never do. So when i see there number show up, i just do not answer and i erase the message without listening to it.
This company calls on my cell number- asking me to hold for an operator- when I got the first call, I waited- they said I had a debt and I asked for an address to write requesting information about the debt. She hung up- I called back and asked them to remove me from their list... they call every day at the same time. I don't answer anymore!