should i open a ticket ?

i got 2 of each of the Melody's items

Snoohok Food Gift x2 Wintery Glitter Jar x2 Snooburb Food Gift x2

Yes, I'd open a ticket.

thanks i dont know whats going on... could it be my mouse being faulty?

Sometimes stuff like that happens. If you file a ticket they'll probably just tell you to delete the doubles.