2nd Lumia 920 having issues - Tired of getting BAD DEVICES

I bought a new LUMIA 920 under a contract for 2 year, within 20 days Front Camera started having issues and Guess What....Att replaces a BRAND NEW phone with a Refurbished Phone.

I thought may be NOT ALL Refurbished are BAD and accepted the offer from Att. So after 7 days of using the REFURBISHED LUMIA 920 - This piece has developed a different problem.

I now see the issue with the proximity sensor. Everytime I call someone and remove the phone from my ear to place it on Speaker Phone - the phone does not light up. When I press the power button to light up the screen, it will light up for a fraction of second and than go dark again.

That Apart Att charged me for all the messages which were going through FB and Whatapp App. The rep credited me 40$ for that, but COME ON Att - is this the torchure I have to go through after a phone upgrade and STAYING COMMITTED FOR 5+ YEARS.

Also, I was promised a call back from ATT rep for my Wireless Charging Plate and that call is YET TO BE RECEIVED.

So SHOULD I EXPECT ANOTHER BAD PATHETIC REFURBISHED LUMIA 920 or I CAN EXPECT SOME PROFESSIONALISM FROM ATT to GET ME A NEW DEVICE WHICH WILL WORK?????

Chintan