These people are quick business capital lenders. They try to make you believe that they are from your bank. "Because you have a good track record, you are now eligible for better rates on your credit card services." You discover later that they are not Chase (or your bank) at all. I have blocked all of their numbers, but they keep coming up with new ones.

Call acting like they are your credit card company and they are not. I know my cc company will mail all info not call.