A. the Corolla Lounge is not really the place for this thread, you should've posted this on the General Discussion, OFF topic forum OR the Feedback forum
B. parts.com is not affiliated with Toyotanation and they're not a supporting vendor on this site, all they probably did was run their add on this website or on google ads.
Hopefully you will get a response from someone on this issue, I'm moving this to the Feedback forum.
I myself don't usually deal with people or businesses whom I cannot go to in person and complain or get my money back.