I am returning my original note 7 to Tmobile because less than 24 hours after taking off the case once or twice, the bottom back had a line of scratches. It had never been dropped. I have noticed it also has overheating issues as well. What's the best thing to put on a return form? Should I just mention the scratches or the overheating part? The scratches are very easy to see. This is my first time having to return a device.