Your Google AdWords account has been suspended because your billing information in this or a related account c?

[maricel]

Your Google AdWords account has been suspended because your billing information in this or a related account c

What does google suspend?

the name in the credit card?
the credit card number?
the registered name in adwords account?
or the ip address?

[Jake]

The registered name in adwords account perhaps combined with the billing address, I know those who manage to get multiple accounts use different names and addresses and employ clean room techniques like separate browser and an IP proxy that matches the registration address to avoid being identified as the use of both accounts.