I want to fill up a form(RMA)dji send me. I have thrown away the receipt and i do not have the original box.My drone was bought directly from DJI. Q1.They ask for a "valid proof of purchase".Will the receipt from paypal do the work? Q2.They ask for serial numbers of a.Drone,b.gimbal,c.Remote controll.I don't find any of these on these parts.I read that these serials were on original box but as i already said i thrown that away. HELP!