I just purchased a pair of the Decollete 868 in beige patent with the wood platform from Barney's online. I've only worn the shoes around the house for about 1/2 an hour to break them in. Already, the patent is puckering at the back seam on the heel, even though the shoes are NOT too tight in the heel. Is this normal for this style in the patent or did I get a defective pair? This is my first pair of Louboutins, so I'm not familiar enough with them to know. Considering that I got one of the two last pairs of this style and it's now sold out, I hate to return it. But I also hate to think of paying so much for a defective shoe. Has anyone else experienced this with their patent Louboutins?