Lol, at the end my video on helping my friend on how to sign a message, helped me. 
https://www.youtube.com/watch?v=2XLO-XmzVds

This is "1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh" my wallet 
http://i.imgur.com/LQwHW3n.jpg

1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh
is surely my address.

And this account also mine. Which i will give as collateral to Heutenamos.

Signed message, i take screenshot but coinig say it Failure.

So how to make it right then. I already sign message with that address.
--------------------------------
Requesting loan in amount of 0.05 BTC
Repay: 0.06 BTC
Take Loan Date: December 12th 2015
Repay Date: by Jan. 12th 2016
Collateral: Account Bitcointalk
Bitcointalk username : StevenLiang
--------------------------------

I just check coinig
and it said:
Failure: ('vmB', 'Bad address. Signing: 1GmYoyPWFvQLmVfD3eN9X7ZbPSxgA4ZjL5, received: 1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh')

But before i close that signed message, i take screenshot
http://i.imgur.com/2aUYKVX.jpg

-----BEGIN SIGNATURE-----
1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh

G6DXmMlvuh9sQyOPyzjM/kqGu6a+YAsziuq7D8yUqTyyG8ZOhtEm0CfZKgtCttwWCsf7wMRmVde9WPdvOKxpOIo=
-----END BITCOIN SIGNED MESSAGE-----

Sorry, i mistake to put 0.05 to 0.5.
I signed message on my address. 1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh

This is my first time signed message, if you can tutor me, just say what to do..
I signed like this on my signed message.

--------------------------------------------
Requesting loan in amount of 0.5 BTC
Repay: 0.06 BTC
Repay Date: by Jan. 12th 2016
Send to: 1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh
Collateral: Account

Oldest address post on BTT forum, May 21, 2015
https://bitcointalk.org/index.php?topic=1065850.msg11438424#msg11438424
--------------------------------------------
(note: 0.5 is mistake)
I will make new one. But can i repeat the text above. and just change 0.5 to 0.05 ?

-----BEGIN BITCOIN SIGNED MESSAGE-----
Requesting loan in amount of 0.5 BTC
Repay: 0.06 BTC
Repay Date: by Jan. 12th 2016
Send to: 1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh
Collateral: Account
-----BEGIN SIGNATURE-----
1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh
G6Ujm3T9tRfe/W1QNA5iMdhirTtxgqk1w3uUMBFB2cMOH0YF8IxGFyeD1tmxszAjszP7QlUvlO+60AYU9AWqE6s=
-----END BITCOIN SIGNED MESSAGE-----

First of all.. thank you for your offer.
But i need to decline it.. i'm not pay you back from signature bonus..
And because i need 0.05 now.. so... yeah. Thank you 

I'm not selling my account. and i need 0.05 to pay something to my friend. Let me PM you, Heutenamos.

Sure i will give my acc as collateral. But i see this thread minimum loan amount is 0.06. So i make it to 0.1 BTC
I'm not playing and try to scam here, i also provide my real fb account. Thanks for your warning buddy.

Loan request for 0.1 btc
Repayment: 0.12 btc
Due date: 12 Jan 2016
Address: 1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh

If you need collateral, please PM.
Thank you.

If i pay faster than 30 days, The interest is still 15%.
Btw, i need this money fast.
For trusted lenders. I will give my account as collateral without an escrow. With condition, the lenders add me on fb. So i can give info when i make the payment.

I can't say invest on bitcoin will profitable. Because i had a lot friends loss a lot money in bitcoin.
But because the price of bitcoin already drop so many, "maybe" in future the btc price will going up again.

But for sure, the bitcoiners (someone who hold BTC ) will keep increasing..

Do not play gamble is the best choice. Even the casino owner itself know, they will lose when they bet againts the house edge.
More bets you make, more chances you will lose. That is the fact.

Need Loan: 0.05
Reason: to pay my friend.
15% interest for 1 month (30 days): i approx will buy BTC back with fiat money on january.

I can give this account as collateral, but i need an escrow for this.
And you can ask for my facebook url on PM, so we can contact even without my BTT acc.

I'm in hurry for this loan. Thank you for your fast response.

My BTC addy, 1DGD4hC6ASrs9qmfUZdqzdaX9JiyHUPHh

I would like to join this signature campaign after not active in this forum approx 3 weeks ago.
Please let me know on PM.

Thanks,
Best regards

As the OP already said, "I hahe contact the owner of site and i have explication the question and his offer me 0,1 btc for revelate a bug. For me, is a little amount, because the bug is very big"

The gambling site that OP said is cannot fix it for themselves, so all lose matches will refunded. Lol
SCAM

Newbie account want to try new thing to scam 0.5 BTC with escrow.
I think all gambling sites will manually check and pay their members betting. Refunded the lose bet is perfectly not true. That's why this scammer will not give the gambling site name. "Because he is the owner of the bug site  "

Payment received, thank you Crypto-Games.net.
https://blockchain.info/tx/9536663c1bbb9ded8f8275e0dedf50a974a110ee0dce35a10271a640f07ac41c

Strategy is needed in gambling, but it's not just for pure-luck based game only like martiangel. It also about how to maintain your bankroll (bankroll management) and know when to stop for that day.

How can we know there are no fees (no house edge or casino profit)?
0.1mBTC for minimum ticket price is quite good.
Let's see how transparent you are. bitbingo.io

That's random. But sometimes i try that way too, bet low (very low) to get lost 2 in a row. And bet in normal amount after that.
The probabilty to win on that bet will higher a bit.