Just to update. Took the phone to SC today because my phone started rebooting. They replaced the mobo + screen in 3 hours. So far there's no issue on the touch sensitivity and reboot. But my earpiece still have some weird sound during calls & listening to voice messages.

At SC, met a few note 7 users. One of them had s-pen not working issue. 

Now praying that MobileOutfitters would allow me to replace a full set of screen protector.

This is really worrying, considering it can just appear out of nowhere despite using it for some time. No one is safe now, honestly I rather it affects my phone too, so that I can get it changed or repaired rather than after I have more stuffs in the phone then only problem occurs. I don't feel safe leaving my phone with important data with them