CSL front bar splitter replacement

[kkkk]

I have a CSL front bar and the splitter got damaged. Unfortunately, I ordered an ebay replacement and it doesnt seem to fit
Where does one get their replacements from?

This is the ebay one I had ordered: https://www.ebay.com.au/itm/317070799372
it's also really thin , are replacements thin or thicker? The one on my car that came off looked like it was reinforced.

[9kracing]

What brand is the bumper? Maybe it's the bumper itself that is off