866-215-5388

The number belongs to Amex Bank of Canada.

American Express Canada fraud department.  They called because I had a charge from an on-line business and wanted to verify the transaction.

I dont have credit card why they keep calling me?

866 215-5388
They called me saying it was regarding my Master Card. after I hung up I realized they didn't give what company Master Card. They didn't ask for my card number, just my mailing address. They first confirmed my name and said my card was used online at some company I don't use. He said he would cancel my card and mail out a new one. I wonder if this new card really comes if I will be giving some confidential information if I use it.
I called my real Master Card and he confirmed nothing has been going on with my card.

Received a call from this number.  I don't answer random calls and no voice message was left.  After reading comments about the caller being AmEx, MasterCard, etc. I can only conclude that this is a fraudulent caller.  I don't have credit cards of any type.