I happened to pay a little less bitcoins than needed for my transaction (i didnt counted the currency difference) and the merchant said it was possible to either send me less of what i am buying or he can refund my transaction. Since then I received no answer and now i am waiting more than 24h for response. I have all the detail needed, I just want either what i bought or a refund. What is you opinion ? What should I do ? I received nothing , my bitcoins are gone :( Any ideas / help