Myntra.com — received a pair of jeans which store in few hrs after wearing

Hi, had ordered a pair of jeans from myntra branding Tommy Hilfiger, paid nearly 4k for d jeans and wat i get in return is it tore in few hrs after wearing.. Even a roadside product do not get ripped in few hrs o[censored]se.. Now myntra is backing off saying we delivered product perfectly.. Very unprofessional and does not think of the consumer at all. How can a branded product like Tommy wears out in hrs.. Pls help