Never get into a discussion with this type of caller. Do not give information, do not curse, do not request removal from call list, do not do anything. Just HANG UP. The more you argue, the more the scammers will call back. And the more irritated you are, the more likely it is that you will reveal information.
They called and asked for Crystal. I said there was no one there. I called the number back and after waiting, I was placed in touch with a "representative". I asked to have my number removed from their call list. The gentleman said "no." I asked why not he said because I didn't know why they are calling. I asked why they called and he said it didn't matter because I was going to ask to be put on the do not call list. I continued to ask for my number to placed on the do not call list, but the rep said that he would not do it and that he was going to hang up. I tried to call back but the number is not working.