Disgraceful service to a long standing customer!

I am very disappointed at the poor service I have received regarding a pair of jeans that has torn from the stitching. You repaired them and they have torn again! I have sent them into your head office for a quality check only to be told that unless I can produce my invoice, you cannot assist as you cannot find it on your system. Let’s be honest, who keeps invoices of every single item of clothing/footwear they purchase...? One can only buy Freddy Jeans at a Freddy store, so there should be no question as to where/when I purchased them? After chatting with you on email, I’ve yet to hear back with a resolution? After much discussion with friends and colleagues, it seems that many people are experiencing quality issues on their newer pants which are tearing in numerous places. My pants in question are my newest pair, my other are a few years old with absolutely no issues. This makes me wonder if you have changed your ‘recipe’ and are using substandard fabric, production etc in order to maximize your margins. I have been a loyal long-standing customer of yours for a few years, however with this experience, I am definitely going to move my loyalty to one of your competitors who give better service, and are half the price!