Poor quality on underwear

I am so disappointed with the quality of your underwear lately. The underwear bought in the last year has not been of good quality but this one bought just a few days ago takes the cup. I bought it at La Lucia and today was the first time wearing them (the panties) and they torn already after hours of having them on, your undies don’t come cheap for such compromised quality I have overlooked this for sometime but this I can’t. What do I do since I can’t really return panties however can’t be spending so much on panties only to be torn the very first time I put them on, I would appreciate response.