I bought a bumper as instructed to by Apple so that I would have better reception and stop dropping calls on my iPhone 4; but the bumper blocks my desktop charger plug and other plug-in accessories. Every time I need to charge the phone I have to remove the bumper and put it back on when charging is finished, same thing with my car charger and jack for my speaker system. It keeps pulling on my invisible shield and I am afraid eventually it's going to pull it completely off. The mute switch is also inaccessible with the bumper on. Is this normal? Or do I have a bad bumper that may be a bit too thick?