I know about the instruction with bitcoin wallet and PGP key but I have read there what, I quote:if this step did not help, you can try to address your demand to me or LZ.
That is why I hope Xandry or LZ will see this topic and will help me.
I'm not sure what you are quoting here, but they likely can't help you in this situation. Only theymos and cyrus is currently dealing with recovery of hacked accounts. They likely haven't answered due to no sufficient evidence that the account belongs to you. if it's as you said that you do not have an address linked to the account then you won't be getting access to that account.