fake hair

so i bought hair in December and my hair didn't have volume so i had to return the hair so they can add a bundle,so when i took back my hair guess what they added with the fake hair the hair color is me rune and it doesn't have that bouncy volume its stiff and all i dont want them to fix my hair i just want my money back i regret buying hair from them i was wormed from one of the stuff working their but i thought its not true i regret buying from them i just want my money back before i even take this further than it is mxm