If you are not concerned about privacy, you need to let us know the txid just as mocacinno posted already. If Electrum wallet is used, the transaction would have been dropped from mempool and the sender will be able to rebroadcast the coins again in a new transaction.
OP provided lot of incorrect information or he just made up this story.
Cause every transaction created using electrum is RBF enabled default and this update rolled over for a while at least prior to the halving if I am not wrong.
Electrum also allows bump fee which is very simple so if OP found himself in a situation that stuck for month he simply can jump bumped it or use CPFP if the receiving end is also non custodial wallet.
Finally TX will likely to be purged in two weeks if it's not rebroadcasted and in electrum, it doesn't rebroadcast TX on it's own again.