Again, did your credit card was really charged? If not, you can easily cancel it. If they charged it, you are very close to receive it (read the faq). So, wait and will have your devices!
I start to buy it at june. I used my credit card and in all this time, they don't charged it!
I am in my mind they are very close to supply all demand. I just buy from semiconductor because they have the rfduino without the breakout board.