Unable to access Apple SEED Sales account

Re: "Apple ID : i cant access apple seed account when i sign in it looks like a black screen on the browser"

You may need to first check that you are signed in (to your Mac or device) with your Apple ID:

Sign in with your Apple ID - Apple Support

Then use the Mac or device to sign-in online: https://appleid.apple.com

If needed: Get a verification code and sign in with two-factor authentication - Apple Support

or

What to do: If your Apple ID is locked or disabled - Apple Support

More help:

Apple ID Support website (info. / support / contact):

Apple ID - Official Apple Support

or

Apple phone numbers around the world

Contact Apple for support and service - Apple Support

I cant access apple seed account even if i had already done to sign up

I can't access apple seed account