Attach subscriptions --- Active subscriptions

Hello. I've been trying to attach subscriptions to my systems. I have premium subscriptions, and it shows at red hat customer portal that the subscriptions are active. But I can not attach these subscriptions. I have successfully registered the systems through the command line, but I can't list the subscriptions. says 'No available subscription pools to list'. I checked the the number of sockets for my systems --- its 2 sockets even for the subscriptions.

Please assist