Contact the MasterCard customer service. Use your phone to dial the MasterCard customer service number, (800) 622-7747 or (800) 627-8372. Follow the answering service prompts. Choose your language to listen to the MasterCard customer service menu. Talk to the MasterCard representative.Is Maestro and MasterCard the same?
Maestro vs MasterCard. Maestro is the name given to a brand of MasterCard. They are registered trademarks of the same company. However, their usage is different. Maestro is used as a debit card and MasterCard is used as a credit card.Where do you find the card number on a MasterCard?
The MasterCard issue number is found on the reverse side of the card, in the signature box. It is the last three digits of a longer numerical code.Is MasterCard accepted internationally?
Most importantly, you want any credit card for international travel to be accepted everywhere you go. That means a Visa or Mastercard. Although American Express cards are accepted in a lot of places, you will find a lot of merchants that do not accept Amex outside of the United States.