I called them up, turns out their phone company was hacked and their telephone number was used for fake calls :| They said they were aware of it and trying to stop it now.

Same exact call at 3:15 in the morning! I am furious they can get away with it. I dont even have a mastercard!

Just got the same call. Damn scamers!!!

I got the same call a few minutes ago.  Obvious scam!

Said that my Mastercard debit card had been deactivated. I don't have a debit card. It must be a scam call phishing for aadebit card number. Beware.