Yes a little research before buying a Gaming notebook is required. I think you had 30 days to return to Best Buy. I would contact them explain you situation that you need to return the notebook but are stuck offshore. Not sure what Offshore means to you but if it same as for me it means out in the GOM or Overseas. but is your from the Gulf Coast most Best Buy managers understand what offshore means too. You might get one of the managers to accept the return late with prior notice.
I think you can RMA it to Asus Repair and they should be able to get your temps down or replace with the same notebook.
If you can't get best buy to work with you. You'll have to deal with Asus Repair and if you do I would contact PM cl-albert and or Bahz. CL = Customer Loyalty both are Asus Employees and can help with getting a successful repair the first time with Asus Repair? Further posting should be in the GL Sub Forum this is the G Sub forum different notebooks altogether.
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro