Samsung S20 Ultra Overheating Issue

HI All, since day one and i face an issue with my brand new Samsung S20 Ultra , if i used the camera app for sometime, the phone gets overheated from the back and the fornt side , also the battery is getting drained so fast if we are talking about 5000 Amb battery.. the phone has many issues also woth the camera and the focus sometimes even after the last update . i sent the phone for teh service in Emirates mall , they deleted some apps and said that that will be ok , and definitly that was BS , so the phone is still having the same issue and its gettting worse . i need support and i dont know what the next action that i should take.