may sound crazy but try hand sanitizer too

Acetone on a rag.

What kind of cleaner have you been using on the quartz? Perhaps you have a build up of that cleaner and you just need to wash it all off the surface. Then when you wipe in up, be sure that you buff it with lots of paper towel or terry or microcloth so that there is no liquid left behind.

Hello Kim, i have this same haze/film on brand new white quartz, were you able to find a way to clean it off? i talked to somoene who said he might be able to polish it out for $900-1400 yikes

June:

Try a little MB20 on a white pad on a small random orbital sander please. You won't hurt anything and it may work.

I have also been successful with Acetone on a rag. wear gloves and open the windows.