What should I do?

I bought some parts from a seller here too, I got busy and didn’t open the package up right away, when I did one of the things I bought is rusted, broken mounting studs and can’t use it, even missing a bracket that was supposed to be with it that you need to mount it to the car. The other item is OK that came but the other is not usable. It’s been about a month, meant to message the seller since he seems nice enough, but been busy, father in law passed away so been busy with all that too and forgot about it.

I have since bought a replacement from Rat Rod Al to use, should be here soon!