Three Dot Store — product shipped not delivered no response

Hi,

I ahve placed the order in instagram three dot store on march 1st.

After successful payment received the order confirmation and post one day received order shipped kind of message and mail.

Then it's been 16+ days no information no tracking no customer care number i am. Finding.

Better in such case we need to sue instagram itself for allowing such platforms to do this kind of activity.

Need to check the genuineness of this.

Thanks
Deepak