download vcenter problem

Hi

i'm trying to download VMware vCenter Server 6.0 U3d

but it says :

You either are not entitled or do not have permissions to download this product.

Check with your My VMware Super User, Procurement Contact or Administrator.

If you recently purchased this product through VMware Store or through a third-party, try downloading later.

Download Trial

when i go to trial it gives me vcenter 6.5

i want to download 6 !!