As others have stated, this is a woman who called from Principal Payment (a non-existent company). There was a lot of background noise and prior to speaking she burped into the phone. She called asking to speak with our president and to ask if we were aware of some federal changes regarding credit card transactions.
Woman (sounded Asian) asked if she could speak to owner (by first name). I said about what? She said about our merchant services account. I said lose the number and hung up.