After fully upgrading my quiver and rations I've been unable to find any more fabric in chests around the game world. This means it's become impossible to complete Dobby's Altar in Eurvicscire as it requires an offering of 4 fabric. I was wondering if I'm just unlucky of whether once fully upgraded, it's no longer possible to get fabric thus preventing the completion of the altar?

After fully upgrading my quiver and rations I've been unable to find any more fabric in chests around the game world. This means it's become impossible to complete Dobby's Altar in Eurvicscire as it requires an offering of 4 fabric. I was wondering if I'm just unlucky of whether once fully upgraded, it's no longer possible to get fabric thus preventing the completion of the altar?