It was a scam phone call from a robot voice that claimed a couple of very large transactions from either my Mastercard or Visa card (how can they know which one I have??) had been made this morning. Whoever it was asked if I wanted to approve these or not, or else speak to someone about it. When I chose the last of these, I was asked by a person with a foreign accent what they could do to help me. This confused me because I had not asked for their help. So they hung up.