As has been said mate, its not just being a registered user of the site or having a membership. A "UKSG – UK Sign Group membership" is required to gain access to the members area and discounts available to them.
As Ian says, above your name you will see the level of membership tag you have. in this case its Gold Plus.
Please note:
This action will also remove this member from your connections and send a report to the site admin.
Please allow a few minutes for this process to complete.