Alibaba resources billing query

If I enter my credit card information to use some other service which is not provided by the credits, will the services provided by the credits (like ECS) starting billing me after their expiry?

For example, I started using ECS today and also entered my credit card info. Will I be charged for ECS after the credits expire (30 days) ?

Yes, you would be charged if you overuse them (i.e. exceed the limit you get via credits). Whereas, if you use any services provided via the process mentioned ( i.e. unique code), you would be able to access the resources for a month (which you’ll get to see in your Billing Management > Voucher Management section)