I already registered and paid money. But there is still shows the grace period when I logging in from the blackboard. I have no Idea what is the problem is. Please reply me as soon as possible.
It appears you've registered twice! You registered through your school's Blackboard interface and through a standalone access (using your email address). These are two separate accounts. Any work done in one, will not be reflected in the other.
Your course is integrated with Blackboard, then you should only be accessing it through Blackboard.
I will be emailing you directly to discuss your registeration, as we will not be charging you twice for access to the same WileyPLUS text.
Tom with Wiley