^The exchanges have some problems, because they were using the old code with smaller fees and their transactions will be included only by the miners also using the old code. Those changes are 16 days old and most of the miners changed their code on 30th of May and just a few miners (and one of the pools?!) are using this old code. The miners using the old code are mining blocks with little to no reward (~0.3 XMR for a mined block?!). This problem started about 30th of May for the exchanges and I wrote them back then to update, but they are little slow with such small issues. Their transactions somehow got mined till now, but it's getting more and more unlikely and their transactions are stuck in the mempool (will be mined or will get eventually returned back to their wallets sooner or later). The exchanges are finally working on the problem and the devs are helping them in #monero-dev. This will be fixed sooner or later and we should receive our XMR.
About the exchanges "didn't notice the change in the tx fee from May 29th":
05/30/2014 Me: "Yes, finally it did. Did you upgraded bitmonerod to the final version? There is a higher tax in the new daemon and it seems your transactions are not propagated and accepted from the network. Thank you."
05/30/2014 Bittrex support: "We have no upgraded yet... I'll make sure to add that to the list."
Then Mr. Richie Lai is either a liar or ill informed.
Me Yesterday at 20:15
Thank you. Is there an ETA on when either my coins will be showing up in my wallet or you refund them to my account? Here is the announcement from Bitcointalk:
"May 29 - Mandatory upgrade to 0.8.8 to fix an overly aggressive block size penalty. Please do not send funds using the older version of the wallet software, as it will use the incorrect fee, and your transaction will take several days to either arrive or fall out the mempool.
Seems you guys are a few weeks behind.
Richie Lai Today at 04:11
Yeah , we've had the upgrade for a while, but the txfee change wasn't something we caught. We've been working with the devs on this all night. Hoping to get this resolved soon.
Thanks for your patience and understanding.
Richie