PnP not as sharp as they used to be.

So, PnP I've been one of your customers for more years than I can remember, however I must say that the quality of your service is not what it used to be, nor is your quality of your clothing. I bought a track suit pants at your Randridge mall store, wore it twice and had the stitching unravel. The material is also displaying small holes around the stitching, which is totally unacceptable. I contacted your customer care line, however have had no response. How do I get my money back?