Cant registered my WD Gold 4TB HDD with modal WD4002VYYZ

My model is WD4002VYYZ, and it always say wrong serial number when i registered in WD website. Is this because of old model number rejected by WD?

Hello, kenkenken

Maybe you should try contacting WD’s Technical Support about this.

To Contact WD for Technical Support
http://support.wdc.com/support/case.aspx?lang=en

Hello Rocky,

I cant use the online form to ask question because my serial number are not
valid show in WD system. Take a look for my HDD below, i purchase this in
Hong Kong but cant registered in WD website.