I can't close my PelvicToner, what's wrong?
There are 2 standard springs in the pack, which sometimes get completely entangled and look like one single spring. When this "double spring" is inserted, the device won't close properly. It is most likely that this is what has happened in your case.
It is simple to remedy. If you remove the "double spring" from your PelvicToner, you should be able to pull the two single springs apart easily and insert one of them on its own. The device should then close easily.