Levi's India — Jeans

I have purchased 4 jeans from Levi’s store abulane, meerut.One grey color jeans I wear after 1st wash its all white lines all over the fabric & I tried again that the lines may be invisible after wash but the white lines are not going from the fabric.Other blue jeans is 18%wool in it because of that I’m unable to wear it in 40degree temperature as I have purchased it in July month from the Levi’s store.please help me.solve my problems as the company is very highly reputed.I’m wearing Levi’s co Jeans since decades.