Eventually your transaction will get confirmed, in worst case scenario it will get stuck as unconfirmed and then returned back when nodes will start removing it from their memools, but your wallet might be trying to automatically rebroadcast it if this happens. I once paid a very low fee to test it, and my transaction was unconfirmed for more than a month, until it got confirmed. But don't worry, 0.00019 is enough to get confirmed when the mempool will start clearing, it shouldn't take longer than a week I think.
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Cheers @hatshepsut93.
I mean, I used blockchain.info and the 3 options were Top prio which was like £18 fee (ridiculous), normal (which was still quite high fee to pay and Custom. With customer I think the fee 0.00019 worked out to be £2.. which in my eyes wasn't so bad considering I was only transferring £20 (but still that's 10%). So you reckon a week?
Does anyone have any information or resources on a chat with time scale in relation to BTC fee? i.e. 0.00019 would take a week, 0.0003 would take 2 weeks etc. I know this would be quite hard to comeby... but worth a shot.