I ordered a charger for an older mac computer and specifically ordered the T-tip. They sent the other kind (I call it L-shaped for lack of another term), but knew it would work and my daughter needed her computer so I kept it. After less than 60 days it stopped working. Just stopped. I've been more than three weeks trying to get this returned and they are not helpful at all. Now all the phones are giving a signal as if they've been disconnected. I hate there is no way to go about pressing them to make it right. They just disappeared...