https://bitcointalk.org/index.php?topic=33401.0^^ this is the message that caused my headache.
knowing that mybitcoin's private keys were no way accessible to users I assumed all bitbills were affected.
maybe they redesigned their product, mybitcoin fiasco is dated July.
They relaunched their site in September.
conditional hooray for bitbills.
And maybe you don't know that bitbills were not selfcontaining pair of address & key but only a voucher & code to be redeemed by issuer, built on top of mybitcoin
No, they did contain a private key. I cashed one out using nothing but bitcoinj and entering the private key.
I'm pretty sure for each card's actual bitcoins, the company would have to export money to a new private key, since you couldn't really do that internally in mybitcoin, but I'll have to dig out my remaining cards and test.
In such case I was wrong and admit that.