Earphones broken and entire phone must go in

The earphones that accompanied my Note 4 are no longer working. The assistant at Stoneridge claims that they are covered under warranty but I need to send my entire phone in for warranty assessment for around 2 weeks and the entire unit must be replaced. In the interim, no replacement device will be provided. This is incredibly inconvenient as I use my phone daily, will need to back up and then transfer all my data and app purchases to the new device and am travelling.<br> <br> I fail to see why an entire unit must be replaced (at greater cost to mtn than the earphones alone) when I simply need a replacement set of earphones.