I remember now why I don't use Pinterest more. They have a lot of links that aren't to what they are supposed to be.
Amazon is great about refunding your money on items that you are not happy with. I ordered what was supposed to be a Denman brush. When it came it was a cheap Chinese knock off. I contacted Amazon and they refunded my money. I didn't even have to return the items.
I believe you should always contact them first. Often they will take care of it for you. I also think you should post a review stating what you received vs what was pictured to warn others.