Sandisk have renamed all of their cards and taken the number designation off them - Sandisk Ultra IIs became Ultras (so the key is to check the speed of the card which is written on the front of them).
I only know this because I ordered some Ultra IIs off Play only to be delivered Ultras. Needless to say after months of complaining, returning the items and talking to customer services, someone there finally clued on that Sandisk had renamed them and I'd been getting the correct card all along.