I received a call from this number about lowering the rate on my credit card. I pressed 9 to speak to a representative. I asked to be put on the do not call list to which the called responded: F U m'am FU.
The callers are the drug-addicted "card services" scammers, who call us, pretending to be associated with our credit card companies, in an attempt to fool us into giving them our credit card numbers, so they can rip us off. People that have given their card number to these junkies have suffered severe financial losses. Beware of these lowlifes, and warn others, before they are cheated!
And if you do take the time to talk to a representative as soon as they get the feeling you're going "off script" they hang up on you. Just TRY and say "Take me off of your call list..."