Why do you say a signed address is mandatory please? You think someone is hacking Danydee's accounts and impersonating him?
He said to me it's a deposit address of Local Bitcoin, so it's not a signed address.
Everything is possible, I am not giving a final judgment here, I am just a warning. I saw many times, where users made loan deals through Telegram so it turns out that this is not the user who introduces himself. then it is very difficult to prove who is right when evidence is based only on screenshots.
I suggest you check how this business is run by more experienced members (DarkStar_, condoras for example)
edit:
He said to me it's a deposit address of Local Bitcoin, so it's not a signed address.
He always can sign staked addresses or any of his old addresses used here on the forum.