Scuff marks on XJ Illuminated tread plates

I like the illuminated read plates on our 2016 XJL Portfolio.
However had a few scuff marks on the drivers side which annoyed me .
Called my dealer and asked for the detail guy . He said to get rid of the scuff marks or scratches as I had ,To use a product called Flitz. I ordered it on line , used it and with a fair bit of rubbing got rid of all the marks . It mentions dont let the product dry, wipe off with a microfibre cloth when finished . Product works extremly well .Cost for an 8 oz bottle delivered to my door was $22.
Only a small amount is needed.
Kim R.