In order to be eligible for a refund or a replacement, the model must be packed in its original condition and its original package with all the shipping labels on it.
Unfortunately, if the product was used / damaged we cannot refund you because we cannot sell the kit again.If you are eligible to return the shipment, you must ship it with a tracking number method ,also please keep the shipping receipt in the package so will able to refund you.
Please contact us and we will send you a refund form that you must fill out.
You can find all the information for this issue here - return policy.