Return Policy All purchases are final, unless the product is defective. Please examine your package closely prior to opening the sealed package. Defective products will be approved for return within 7 days from receiving your order, and at your own expense (24% restocking fees charge will be applied on non defective items). Returns must be 100% complete. New items must be in an original and resalable condition, with all packaging, manuals, original invoice, RMA (RETURNED MERCHANDISE AUTHORIZATION if available) and the packing slip. Shipping and handling charges are not refundable (some exceptions apply). All (accepted) defective products will be either credited or exchanged. If your part(s) was defective, then we will exchange it within 20 days after receiving your order (please note that some restrictions apply on tested systems). NO RETURNS WILL BE ACCEPTED WITHOUT A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER. RMA numbers are valid for seven (7) days after issuing them. All RMA numbers must appear on the outside box. To request a return authorization number, please call our Customer Support Department at +84 (8) 974-4326 or Fax +84 (8) 861-6973 or e-mail us at support@microheli.com . You must pay the shipping for the returned item(s). For non defective products shipped by MicroHeli or other companies, a restocking fee of 24% will be deducted from the total credit of returned item(s) (excluding shipping and taxes). This return policy is not a warranty. MicroHeli reserves the right to change or cancel it at any time before accepting your order/return claim. For refund purposes, you need to precisely follow the previous return procedures.Also, you need to allow a reasonable period of time for the product to arrive to us and pass an inspection process. Once your return is accepted, we will credit or refund the total amount (including shipping and taxes).