I have been trying to return an item to Hobby King which I purchased from the USA warehouse for several months. Not a big dollar item ($66) but they are almost comical to deal with and respond with emails that say virtually nothing. I first couldn't get the address for their US warehouse (the first customer service person said she didn't have the address). When I got the address I sent the item back FEDx ground. Once I received proof of delivery I sent this to HK and asked for a refund, This has been going on now for almost one month and they keep telling me their US warehouse hasn't acknowledged they received the item even when I've sent them the proof of delivery including the signature. So, bottom line..be really really sure what you purchase...because returns don't seem to be an option.