Registration failed

I have problem with SAM registration.
When i start SAM, type my email address,and click registration, then software indicates :
'Registration failed with error code-1.Please check your internet connection.'
I can't register successfully. After that i have tried to solve the problem for sever times but failed, and now i still don't know the reason.
Can you kindly send me a registration key ?

Best Wishes.

Dear Zhou,

Please check your email for a message from SAM Support.

Best regards,
Paul.