Check that the base of the deodorant is twisted down as far as it will go downwards - to do this, make sure that the Wild logo is facing you, then push the left side of the twisting base component away from you and continue to turn the base in this direction until it no longer moves. After this, press in the buttons on either side and pull the base of the case down and out. The buttons may be a little stiff at first but will loosen up.
You can also take a look at our handy video which explains how to set it up!