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?
when I had a transacted 0.1btc without any fees then it takes me 4days to get 1 conformation.btw it depents on how old are your coins
The age of coins is only one of the many factors affecting the speed of confirmations (priority). Priority is calculated from the size of your transactions, amount of coin per input and coin age. The higher the priority, the faster it would confirm. Of course, the miner can choose not to include your transaction.
Recently I encountered a situation when my transaction didn't get confirmed for a few blocks, though I had paid a higher-than-normal fee of 20K satoshi. It was a transaction from multiple addresses (over 20, if I remember correctly) to my wallet (from an exchange). I've never seen anything of the kind, and this surprised me a lot...
Why would they not confirm it at once?