Text message alert said "Mastercard-Mesage-02, Card Locked Please call 5302303635".
I actually have to MC cards but there is no problem with either so I ignored the call as it obviously was a scam call phishing for personal credit card info. Best advice to those that receive this message is to ignor it and double check your accounts via the normal secure means that you use just to make sure they are ok and not breached.
I received this number in text as well, stating "Mastercard-message-02. Card Locked Please call 5302303635" I traced the number back to Chico, California (Butte County). No other information.