This is essentially the guide (and guidelines) to How to Write a Review.
A review will not be rejected for not meeting all the criteria as long as you’ve filled something in for all the categories marked with stars. Did you definitely give it both a star rating and a title for example as well as the bulk of review? Every starred box needs something in it.
The only reasons the content would actually be rejected (I think) is if it is too explicit, if it contains references to products not sold by Lovehoney or competitor sellers or if you’ve included personal contact information but I’d have thought you would get a different message for this.