I have a few transactions staying unconfirmed - been a few days now.
I suspect the minimum mining fee was upped - 15 minutes prior I was still doing hundreds of transactions a day at that fee - but now it is not enough.
All documentation indicates this is an easy process - simply use the same TX as you used earlier.
I am now feeling that this is more involved.
I took the unconfirmed TX - and goot its prev_hash.
I loaded the TX of this prev_hash and resubmitted it to BlockCypher - and get the message :
Error sending transaction: Unable to lock an input of transactions xxx, likely already spent by yyy..
It correctly identifies that unconfirmed transaction in yyy placeholder.
Thus it does not want to spend it as its already spent.
Now there is a Readonly RBF property on NBitcoin.Transaction class.
RBF means "Replace by Fee" which is what I want to do - but I can't set it as it is read only.
How do I go about to indicate this is a RBF?