Bitcoin is having a lot of scale-ability issues. There are too many transactions to process for their capacity. Therefore miner's are just going to pick and choose the transactions with the highest fees to include in the block. Miner's love this because people are paying more and more fees to get to the front of the line. Segwit or whatever you call it that people keep saying will make things better is highly contested and there isn't even much confidence in the bitcoin forums that it's actually going to happen. Even then it's only a temporary fix.
Unless bitcoin core devs figure this out, it would be nice if another alt currency would take hold in the gambling community. There are plenty out there that hold value that could be trade back and forth just like bitcoin, and when you are ready to cash out just then convert that alt coin to bitcoin and at that point throw on a $1 fee to to ensure it gets confirmed. It's becoming clear we can't trust the books to use a proper fee, as they are all about cost cutting.
Don't plan on getting any confirmations anytime soon if your fee is less that 10 cents. The unconfirmed transactions list is climbing and climbing and showing no downward trend. All new transactions are being put in at much higher than 10 cents and they will all take precedence over you. Demand > Supply.
https://blockchain.info/unconfirmed-transactions
I've been btchin about the fees Nitro sends their withdraws with and letting them know its going to be a huge problem for their business. Private messaged them about it, and posted here and other places. I was basically ignored, and now I bet they will be dealing with a lot of pissed off people over the next couple of weeks.
The volume is unprecedented, and people will just keep paying more and more fees, and your transactions will not get processed anytime soon, if ever.
If it's sent from your wallet you can double spend and tack on a higher fee and it will get confirmed, but if you are receiving you are at the mercy of the blockchain and whether or not the sending party comes up with a solution to get you your funds.
Again this upward trend is unprecedented and I hope everyone gets their coin but you may never. Especially if your withdraw was from Nitrogen and their paultry fees. They are getting a bad name all over the internet at bitcointalk and reddit now as well.