It's a scam, often uses the name "Credit Services". Say they'll lower the
interest rates on your credit card ... of course you'll be expected to provide
them with the card numbers and they'll be just SO helpful ... in cleaning all
that musty excess money out of your account and applying for new, higher-
limit cards using the original as their reference.
Something about lowering my interest rates on my credit card (I don't carry a balance), push 1 for customer service. Got someone who barely spoke English, I said 'I;ve asked about 4 times for you guys to stop calling me. i'm on the do not call list'. She just quietly hung up. This is at least the 2nd time this has happened and i don't know how many calls i've received from them.