Glove box lock/latch replacement

Hi guys - I'd really appreciate some help on this please

Main glovebox - the one on the passenger side. A while back the bit that you press in the open the glovebox 'exploded'. There is an inner part and then the actuator itself which has the button, a spring and when pressed in pushes the sideways spring to open the glovebox. This is the bit which exploded, the spring disappeared and the assembly looks like it is glued to the inner part.

I've bought a replacement assembly to replace it but have no idea how to remove the rest of the existing one or to fit the new one. It doesn't appear to just pull out. I've attached a photo

Any help or guidance very much appreciated.

Thanks