I have been a customer of Net-a-porter for years. Most recently, I ordered the same shirt in two different sizes because I wasn't sure which one would fit me properly. Once I determined the size that needed to be returned, I called them and got an RMA number. I got the return back to them after the designated 28 days -- and to my surprise, they mailed the shirt back to me stating that I had waited too long and the 28 days had passed. I was so surprised at this lack of customer service from a high-end luxury retailer. Not sure I will ever order from them again.