Cheap material

So so :( Disappointed with cotton, I buy my jeans at this store but this month bought a jean R599 and wore the jean once and hand washed it and tried wearing it for the second time, jean showed me flames, jean stretched... imagine spending R599 n get to wear the item once... this is not fare and I’ve never encountered this ever since I started buying there...I’m shocked and scared to shop again. Cheap material