Pantyhose

I went to Identity menlyn to exchange my pantyhose but still all the pantyhose are damage even the one that i exchanged there damage..what do i do now cause ure quality is no longer the same..I buy pantyhose every three years to them but i have experience this kind of nonsense but im so disappointed with ur quality..you must give me a way forward i can not be coming to your store every week to do exchange..