Cheap material

I bought a formal black trouser last week Wednesday 11-09-2019 at Mr Price twin city Mall heidedal bloemfontein I wear that trouser only 2 days it tear off and worse is not the first time this happen the 1 at time I took it simple but now disaster and the was other trousers that had manufacturer faulty the one I took was on a good state until I wear it twice and it tear I doubt if I will ever buy their cause the use cheap material