I can't understand your words, first you need to be calm down, easy easy!
Second, you have coins in the wallet? And can't find your coins on blockchain? It is impossible.
He got scammed by the dash team. Most likely one of the wallets he used was bugged and took his worthless dash!
More info about dash:
http://www.nasdaq.com/article/op-ed-a-closer-look-at-the-origins-of-dash-part-2-cm761072With a history of lies and scams, most likely those dash were long gone!