From what I've found online, they changed suppliers and scent, which caused lots of returns? Unsure, but here's the link to what I found... https://www.reddit.com/r/Costco/comments/drjy09/why_discontinue_the_kirkland_bar_soap/?utm_source=amp&utm_medium=&utm_content=comments_view_all I did see it being sold on Amazon, though also unavailable Body Soap 15 Bars 4.5 Oz By Kirkland Signature https://smile.amazon.com/dp/B002F8VOA0/ref=cm_sw_r_cp_apa_i_Kt7jEb1164MS1
Best bet is to ask at customer service. They can give you an honest answer rather than a guess, like most that don't work there would.
Thanks! Your answer is awaiting moderation.