Phone frames popped out? topic

Hello,

I've owned my Sony Xperia Z3 Device for about 3-4 months and i've always kept a Case onit (Tudia Case) Today i had dropped it, and noticed the frame next to the dock connection has popped out, I went to Tesco's they told me They wont replace it because it is a 'accidental damage' not a electrical fault however i've noticed i'm only getting 2-3 bars

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