I have a question about that last part.
I did a withdrawal from another site, so I don't control private keys. It has been 13 hours now.
When it will be removed from mempool, and the coins will be returned, will the tx still be visible on blockchain.com?
Also, if the transaction is cancelled, and it was sent from multiple outputs, will all parts of the transaction be returned to each seperate address?
It should be 72 hours after the transaction is made and left unconfirmed. So if you have a transaction that has passed 72 hours but still not confirmed it should drop the TX from mempool, which means you will not be able to see it on Blockchain as the transaction hash will not be available. If it was sent from multiple outputs, it should return it to the each separate address unless it is controlled in some weird way.
There is no such thing as a 72 hour timestamp
There were cases of tx waiting for 9 to 10 days in the mempool.
He has nothing to do right now other than wait.
The overall fee is already big enough, something around 140$ and I see people advising him to pay 200$ for it?
Really?