MasterCard cannot assist you in accessing your account information. Instead you should access it through the bank that issued your MasterCard.
Q: |
Where's my MasterCard account? |
A: |
Your account doesn't actually come from MasterCard—it comes from your card issuer. |
Your card issuer provides you with a line of credit and sends you monthly statements.
MasterCard provides the network that handles your card transactions securely at merchants around the world.