Buy X Get Y doesn’t check cart

Hello Yay Team,

I am currently facing a problem and I don’t know if this is an intended feature or not.

We have a cosmetics store and we would like to create a Buy X Get Y deal on our Body Splashes category. The deal shall be Buy any 3 Body Splash (200ml) and Get any 1 Body Splash (120ml).

I am made this configuration: https://snipboard.io/enjYa3.jpg

Using the configurations in the screenshot, I thought that the customer journey would be:

• Add any 3 body splashes of size 200ml to their cart
• Add any body splash of size 120ml to their cart
• The cart automatically updates the 120ml price to 0.0 EGP

But what is actually happening is:

• The customer adds any 3 body splashes of size 200ml
• A random body splash of size 120ml just gets added to the customer’s (most probably not what the customer wants)

Please help ASAP

The page I need help with: [log in to see the link]