TL:DR: You're asking me how to extricate yourself from a situation no reasonable person would ever place himself in.
The answer is simple: you won't.
You won't get your money back after sending it to Anon who may/may not live halfway around the world. It can't be done.
I don't even know that the "here's some crumbs back" offer is genuine, or just another stall/stage of a convoluted scam. Hence popcorn.
I'm not asking you for anything. You have no opinion to offer w.r.t. Bitcoin other than "too risky; don't try" and we've all heard it ad nauseum. Fortunately, not everyone has your zeal for life otherwise we'd still be living in caves, eating raw meat and fearing to venture out lest the "Anons" consume us for lunch. Give us all a break and eat your popcorn (which by the wouldn't exist either because your world would still be flat without some "Anon" venturing out to find a new trade route for other "Anons" to trade with "Anons" half-way around the globe).
AMHash is now non-performing; telling people not to invest in it now is moot.
So again I will ask for rational thought on the matter at hand. Try your best not to answer this time NotsoSilentofaNotLambChop.