I have been receiving phone calls from a CA that I just received the paperwork on. THey have been calling my unlisted DNC home number which was not provided to the original creditor, nor was my work phone . I only provided n my cell phone to them and they have not called it. They called my home last night 4 times between 8-9 pm. What should be my course of action with them as I have just recevied the paperwork from them on the account? Should I send them a C& D letter except through the mail