Why are my spatialise and reverb settings not working?

So I am following a tutorial given to me by my course tutor and I have done everything by the book but my spatialise and reverbs do not do anything. I have checked spatialise, I am using a stereo .wav, but it still plays through both left and right at the same volume… And I have used an audio volume, checked reverb and created a reverb, but no reverb gets applied no matter what I do… Any reason for this? Is there something I am missing?
Thanks