Taken from the Nengun website
"EMS is a pre-paid international shipping service delivering to most countries in 3-5 days with full insurance coverage. See the Japanese Postal Service website for more information."
I have just been supplied incorrect parts from Nengun. I had to send the item to an address here in Perth and then they resent the correct item. No 30% restocking fee unless you ordered the wrong parts.
I don't think Nengun, Greenline, Streeter etc do anything different from each other in regards to shipping etc. Maybe check with Streeter and see what his returns policy is?
Here is his returns policy which I presume is for 2nd hand parts not new ones??
"With the razor thin commissions I run I am not able to offer warranty or returns for faulty or damaged parts."