I have a validated card, but when I tweet the URL, I still just get the URL?

vdcstore · 2013-11-26T23:44:22.000Z

Can you tell me what I should do next, my website URL is;
http://www.vdc-store.com/2013/11/storage-infrastructure/

Which validates and tells me “*.vdc-store.com approved” ???

rchoi · 2013-11-30T23:42:26.000Z

To get a card to appear, tweet this URL: http://www.vdc-store.com/2013/11/storage-infrastructure/

Thanks!