Radz-at-Han Quenching Oil. (Please help!)

This is the last thing I need to finish the relic weapon quest (I think). I've seen a lot of posts and stuff about getting this item from Auriana in Mor Dhona with tomestones, but she doesn't seem to be selling it? It's not there when I go to purchase from her. I feel kind of stupid, lmao. I'd appreciate any help or advice on getting this item! I'm probably missing something right under my nose, too...

Thanks in advance!

When you go to Auriana, it is either under DOW/M and other, or it is under items. Hope this helps!!

She has Weapons, Armour, Accessories and Others, and the only thing in the Others part is Rowena's Token. :/ I can't see it anywhere. ;______;

OH MY GOD, I totally missed that whole section. Dammit. I have it now, thank you so much for you help and apologies for my lack of observation! ＼(◕ヮ◕)/