I have been receiving calls from these 'card services' telemarketers for over a year now. I have been blocking each number they have called with (over 35 at this point). And I have been filing complaints with the FTC Do Not Call Registry and the FCC complaint site, to no avail. I do suggest you all do the same, and do not talk to them or call them back.
But to really get some attention, I created a petition on the White House We The People site. Please go there and sign it, we have to get the word out any way we can:
My dad got a call from them claiming to be from the ssc. They wanted $6500 for delivery insurance policy. Theytold my dad he'd won $650,000 on a sweepsteak, were investigating the sweepsteak for fraud and would help him get his money. Strung them along enough to get their bank details though so they'll be included when I report them for fraud. The guy called him self Rob Blake. Also spoke to another guy calling himself Jack Goodman on 202 747 5372. Wanted cash paid into an account under the name Chris M Carlise for the so called insurance.