spam- selling credit card processing
Possible Debt collection from B of A. You Don't know for sure or if its a scammer so dont give them any info at all & Tell them to send everything through the mail. Also tell them to cease & desist the calls to avoid a harassment charge that you can file against them.
These guys are constantly trying to sell me credit card services. I have asked them to stop calling several times. I am filing a complaint with donotcall.gov from now on.