Bests & Worsts Reviews from Amazon

I purchased this toothbrush for my daughter and within 6 months is stopped working correctly. It now only works for the first cycle and stops when it is supposed to beep to let the child know to move on to the next section of teeth. I contacted Phillips Sonic Care customer service who had very nice and helpful customer service people. Every single one of them promise to send out a replacement one free with a return box to return the old defective toothbrush. I get a reference number, however NEVER receive the shipment. When I call back, I am told by another CS rep that they are not sure why the ticket was "closed" and then I am reissued another reference number with a promise to send a replacement one. This has been going on for almost 4 months now... with countless reference numbers. This company is a nightmare to deal with....