You shold login to our Customer Portal (http://www.webyog.com/customer) in order to access new versions. But as it seems you purchased through a 3rd party reseller (with or withourt our knowledge), you may not have been informed about your login details for the Customer Portal.
Besides, we will not discuss your license details in public. It is private for you and us. Please send a mail to firstname.lastname@example.org or email@example.com with a reference to this Forums post, and we do our best to help.