Google Payments is disabled for ECCS Cloud Email accounts.
Paid services that require payment through Google Payments, such as Google Colab Pro and YouTube Premium, cannot be used with an ECCS Cloud Email account.
If you need to use such services, please use a Google Account other than your ECCS Cloud Email account (e.g., XXX@gmail.com).
In addition, as a general rule, the use of paid features of Google Cloud Platform with an ECCS Cloud Email account is prohibited.