Is it still in the packaging? It ought to be a microSD in a SD card sized adapter that can be removed, but might be hard to spot in the packaging. If it really is a full-size SD card (no adapter) then it needs to be returned to the seller, since it is not possible to use it with the B+.
if ship back the sd card to the reseller is a problem, you can anyway invest few $ buying an 89Gb (suggested, better 16 Gb) micro SD card class 10 then downloading the package setup a SD card by yourself. You can do it in less than half an hour and see your raspberry pi running as well.
