What are you doing? Are you kidding? Who shares their private information like private keys or seed phrase? I don't think you are really trying to recover your account. I think you are here to make a joke if you shared your private keys. If in the board there is no seed phrase then what are thay ? Kindly explain
Maybe he aren't shared a real private key but just dummy or trap just to know who interesting on his plan. If he was really serious, he could try recovery using electrum like posted above, It's look easy just select import private key option on electrum.