When sending a bitcoin, If I wait until after a few days at 0 confirmation, Can you can cancel it or do I have to wait?
If I can cancel it, Can you tell me how? and If I have to wait... is there a limit? How long do I have to wait?
Same thing with what my transaction yesterday, its not yet confirmed and its more than 12 hours already. Its the exchange that sets the fee so I have no control over it. I'm not in a hurry though but bitcoin is getting slower everyday.