I'm making this request on behalf of another user who emailed me hoping I could help. I'll instruct him to follow this ticket.
Hi Wikitech Team,
I have registered Wikitech account username : "Ashok Vignesh K" and User ID: "3008" but need to modify/rename/change the instance shell account name from "ahokvignesh" to put "ashokvigneshk". Please update the instance shell account name.
Thanks & Regards,
Ashok Vignesh K