I am using blockchain.info.
I have made a bitcoin transaction of 22.00883562 BTC to the address 1A9eUAc78tGx65X3CuC9WfSKXXgxjU8ccC.
You can see the transaction at https://blockchain.info/tx/97c1af82111cdcf17f878eb6df20c17c59c1b1fc04e8cdce36b8ac6c6d1c969a
I have paid a 0.001 fee but it has been almost 30 hours and it still shows "Unconfirmed".
What could be the error? Also, more importantly, how do I cancel the unconfirmed transaction and get back my coins?