Missing parts...not sure what to do. Has this happened to anybody else?

Hi! So i got this really awesome toy for my daughter on vine and its missing a few parts. I was so excited to set it up for her but i knew right away it was missing a few things.

So my question is what should i do? Ive heard about people trying to contact sellers on Amazon when this stuff happens and it ends up flagging them and sometimes they can't order anymore products.

I was planning on just taking the hit but writing a review just stating that i received the product but there were pieces missing.

Has this happened to anybody else and if so whatd you do? Thank you so much and I really appreciate you taking the time to read this!🥰