Got a call from these clowns today.  I now just say sorry that person is not at this number and hang up, fastest solution.

I got a call, they left a msg sounded like a crowded telemarketing room

The people on the other end of this line had Indian/Pakistani accents, and were calling from a very crowded room.  They claimed I had earned a lower interest rate on my card, and seemed to be trying to get information from me.  People who receive a call (in Canada) from this number should contact +1 888-495-8501, Phonebusters, the Canadian national agency created to deal with phone scams.

The same low interest credit card offer.  Starts off by saying he is calling from Mastercard - VISA.  Well, since it is individual banks that issue credit cards, not some central Mastercard - VISA office, I knew it was a scam of some sort.  When the bad grammar became more apparent I just hung up.

"Jacob" at some call center trying to sell some sort of financial service.  I told them to remove my # from their call list.  So far, so good.

Same experience as others. Wanted my credit card information promising me lower rates.  Refused to identify their company. SCAM