Woolworths quality not what it used to be

I bought a pair of jeans from Woolworth one month ago. I have worn it four, maybe five times. Today it tore like a jean that is years and years old. This is unacceptable. I paid nearly R400 for these jeans and I haven't even worn them for a month. I am so disappointing with them because the quality of their clothes used to be the best out there.