Directly from Zoya, buy any 1 Spring Trio($30) get 2 FREE on this page! That’s like $30 for 9 full size bottles = $3.33 each! Use code FLING, exp 4/10. There are 10 sets you can choose from.
Free shipping on purchase $35 or more. If you are interested, grab a lip gloss for $6 to meet the free shipping requirement.
A screenshot of my cart with 3 Spring Nail Trio + a lip gloss
(Thanks Isu!)