it's cheaper to just get a replacement case from ebay for 30 bucks or somethin'
don't always trust repair joints
'cuz to send it will cost shipping and they'll probably ask that you pay for shipping back as part of the repair price
sometimes you aren't sent the original parts of the phone, which could be a good thing if they're givin' you a better microchip board 'n stuff - but refurb defectives are the worse upon opening the package..
anyway, order a external set, extract and replace, simple, but don't bend or brake anything
gl