Status update, Dell team appears to have helped with the warranty status.
Hello,Initially my issue is to do with my USB port disconnecting every time I open and close the lid and then after a while it completely disconnects. Done literally every solution from a technical standpoint. I then check support and noticed there’s an issue with my warranty. I’m not sure what to do because the laptop is brand new sealed from eBay. 
XPS 15 9510, eBay warranty issue, faulty USB port