Shinbalsekki

So I just finished the shell bell quest and it does not seem to work? Is this another broken item? Will this ever get fixed? I honestly just feel like I wasted a bunch of repels and time just to get absolutely nothing. Extremely disappointed. Why make the shell bell quest available if we can't even use it? Might as well remove the quest entirely until it's fixed so people like me don't waste our times working towards a broken item. It has been over a year since you've said that you will fix this issue. Could we at least get confirmation that the problem is being worked on?