Have you tried using any of those free transaction accelerating services like viabtc and save yourself the stress of waiting hours?
i wasnt using wallets. transaction is between two trading exchanges.
Using an accelerating service is completely undependent from the sending/receiving wallet.
A transaction accelerator will give your TX a higher priority (for the miner you have paid).
The next block this miner will mine will include your transaction.
Did you check the transaction on a block explorer? How low is the fee set?
It is hard to imagine that a TX doesn't confirm for a long amount of time when looking at the mempool.
Average fees to get a transaction included into the next block are at <20 sat/B currently.