I had made a tx with blockchain.info wallet and it don't confirm in 10 days (it is not double spend, paying 1 satoshi fee) and I can't use the coins now. What can I do?
I had the same error with them a while ago.
The error is because blockchain.info didnt sent the transaction because their servers are crappy. The transaction was most likely ignored and stuck a pending.
Here is how you fix it:
1) Download electrum
https://electrum.org/#home2) Import the private key of blockchain.info into the electrum wallet
3) Send the transaction with electrum (and put a fee for it 0.0001
BTC, to make it fast)
4) Transaction will be send this way.
5) Froget about blockchain.info , their servers are crappy