Hi Edward wong,
I have checked the details for your account we see that there an active subscription.
In order to change the name, kindly follow the below links.
Link 1 : How do I change my name or screen name or password?
Link 2 : Check change your account info link under : Adobe ID, sign in, and account help
Please revert if you are unable to do it online.
Thanks,
Atul Saini