Please Help : Samsung A50 - Screen Turning Black Randomly?

Hello I have had the Samsung A50 for about a month now and sometimes when using this phone the screen turns Black randomly sometimes it will come back on it's own sometimes I will have to click the Power button for the screen to come back up

I have tried "Turning On Accidental Touches" and "Turning Off Accidental Touches" which I have seen on other forms as Solved with this same issue.

It noticeable does it when the battery is around 30%

It happens very rarely more so when I'm pulling down to get that bar of the Wi-Fi, Sound and where notifications would show up.

I went to where I got it today since this happens very rarely they couldn't get it to do it and said “Well it seems to be okay now” I tried to tell them it happens very rarely

Like I will click an app say for example "Facebook" and try to bring that bar down the screen will go black and then sometimes come back on its own and sometimes not.

Please Help Me as I have no idea what more I can do here.