I did the following bet:

https://blockchain.info/tx/a5577b56fe6b8cc64914a8e3b6b94aaf1bf93675697750e68e5604845305fcb9

It was a EURUSD call.  I sent the transfer on 2016-11-15 02:23:43, but the trade was not executed until 2:53:27, 30 minutes later. 

The payment was sent from Electrum, which is a wallet you recommend and I saw the transaction in blockchain.org a second after I sent it.

http://secondstrade.com/tx.jsp?tx=a5577b56fe6b8cc64914a8e3b6b94aaf1bf93675697750e68e5604845305fcb9

Not only that, the price of EURUSD was ~1.07515 when the option was finally purchased, but it spiked on your platform to 1.0756 and then right back down.  And the option was executed at 1.0756 even though no other feed had that price movement (FXCM, Interactive Brokers or ThinkorSwim...three of the largest forex brokers).  Here is an example of a similar price spike soon after the bet was made:

http://prntscr.com/d8mf2l

So basically, even with the 30 minutes extra to execute my trade, I should have won it, or at the least tied it depending on what price the option was traded at...so can you return my bet.  This was my first bet and I want to place a lot more but I want to know that it will be done fairly.


EDIT:
Here is the price of EURUSD when the option was purchased.  This is from TDAmeritrade, one of the worlds largest brokers. 

http://prntscr.com/d8mm4r

The red line is 1.0756, and the oval is the 1 minute bar the time the bet was made.  As you can see, the price was nowhere near 1.0756.  And I am sure that if you look at your price feed, it will show the same spike that I linked before.  Also, I know that price feeds can be different but never by 5 pips, and your price feed has matches TD Ameritrade and the other broker's that I use within 0.3 pips, while this spike was ~5 pips.  Even though I was clearly suppose to win the bet, I would be fine if you just refund it.  I think that would be the fairest option.