I had the same thing happen. I mean if the credit card company wanted to reduce my rate because I pay off my credit card in full they'd just do it. They would also know the information they are asking for. And they always ask for confirmation question to make sure it's them. Plus they are asking for more then one of your credit cards, this means they are NOT with the card issuing company and they can't possibly be from your credit card company. Also, did a reverse look up and it's a land line in British Columbia, Canada it appears to be through Telus. Obviously NOT a REAL call center! THIS IS A SCAM BEWARE!!!

Sounded like a crowded calling centre in Pakistan. . .claimed to be "Expert Consulting Company" calling people who pay on their credit cards on time and therefore deserve a reduced interest rate of prime.  They then requested the credit card info for the card I wished to  have a reduced interest rate on claiming that they will negotiate a lower interest rate with my credit card company.  I hope no one falls for this scam!

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.

They were a group of people from India trying for my credit card numer..
F***ed up bunch!!!!
DONT TRUST THEM!!

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