Motherboard rgb and rgb plus not working

i have a am4 dark hero vlll motherboard and i had to send it in to get fixed and when i got it back i dont have rgb on the mottherboard and the rgb/argb plus work and when i called them back about it they said i can send it back in for repair but i dont trust them. is there anyone close to columbus ohio that can take a look at it. it also turns off if you try to do a stress test on. yes i have looked in the bio to make sure everything is on and reset bio and cmos-