The layers can sometimes be hard to see...
But then again, online retailers have a habit of mixing these up all the time.
Can you post a good picture of the blade face, and another of the writing in the blade? Maybe we can help you identify for sure what you have.
(the good news is, the triple layer SK steel is the cheapest version, if you got anything but that then you got a better deal!)
Also, it's not uncommon for hand made Japanese knives to arrive needing sharpening. Especially in this price range, but even in knives costing many times this amount.