Flying Machine — Flying machine pants

Address:

chennai phoenix mall

I have recently purchased 4 Flying machine pants in Chennai Phoenix mall showroom.

1 pant - Damaged and color completely gone after 1 wash
2 pants - Alterations was done wrongly
1 pant - need to check this as the other items quality is not good.

seems like they have given a very old stock and spent Rs 6000 and compete waste of of money

I need proper resolution to this issue. Let me know what should i provide to get a replacement