If you're extremely careful with it and it pulled apart clean, you can usually get it back together (I've managed to get mine back together twice without messing it up, but I tend to use it sparingly and with usb or bluetooth controllers to avoid unnecessary movement of the pandora itself...). Definitely disappointing build quality just not sure what the best approach to keeping it together permanently is, slightly melting the plastic, carefully micro gluing it together or just leaving it as-is and hoping for the best...
Get ahold of whoever sold it to you and they should be fine with replacing it, but I can't guarantee anything...