My volume buttons do not work on my NEW iPhone 5s, can you relate? Or tell me why?

So I just bought my new phone, about 3 weeks ago. No problems what so ever just recently I think it started last week where I couldn't volume up my device, the volume down button worked. But no matter how many times I'd press volume up it wouldn't work. Just click click click, nothing else! I've been swiping up the screen like where you can increase the volume from that but it's getting annoying this is a new phone! It should work perfectly.

Reboot the phone

Get a Samsung

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