how to acquire blue dye pouch?

so the quest magical mailboxes has been activated and now My Melody is asking for a few resources. my only problem is i don't have the blue dye pouch, i tried searching online and it says i can either recycle or receive them as rewards or gifts. the thing is, i still don't have a snorkel because i haven't finished some of Kuromi's quests and my friendship level with her has just reached level 4 (i only started playing last night) and i have reached the maximum numbers of gifts that i can give. now i'm stuck because apparently i can't start quests with Kuromi since "she is busy with the quest magical mailboxes" but i can't continue with the quest because i can't get my hands on blue dye pouch. i have travelled around the map and all i got were different colors of dye pouch (white, brown, red, yellow, etc.) but no blue :') please help me out, thanks so much! <3