I have hacked a Prtcoin account. I asked my friend Peloso for help. If I prove ownership of the 1KbV1rsx5EgGuyT1CTTbe9XGoAYFMZ4pmj wallet, will they be able to return my account?
I think you mean "they have hacked my Prtcoin's account", right?
However, for recover hacked accounts you can follow the official guideline:
https://bitcointalk.org/index.php?topic=5089777.0