MIIHI diligently works towards excellence and offering premium quality to our customers so Due to the nature of our product, and federal health regulations, all of our hair extensions and units are final sale. We do not offer refunds on any hair extension purchases. If you believe that you have received defective merchandise, please contact us immediately. We will NOT allow an exchange if the item has ANY signs of being worn. Hair cannot be brushed, washed, fingered through, combed, cut, or taken out of the bundle. Our hair undergoes a strict quality control process to ensure that our customers receive only the best hair. If you have any questions comments or concerns, contact mihimakeover@gmail.com