Myntra.com — I'm complaining about a shirt

I bought a mehroon shirt from myntra i hve xchngd it cz of d size issue d shrt is frm d brand jainish... The issue the shirt is bulding out the color... When i wore the shrt mah whole inner wear got of the mehroon color as the color used ovr d shrt is of very poor quality... Plzzz tll me wy to ovrcum it... What cn happen nw plzz provide me a solutn wat wll i hve to do... I hve been a loyal customer of myntra nd ds is fo d vry frst tym dat i met ds kind of material from myntra... Srusly highly disappointed