Acceptance issues with cats are not uncommon. The idea of changing their diet comes to mind - but even then, the food may continue to be rejected. Many pet foods are made more palatable with sugar and artificial flavors. The result: High-quality and healthy food is less well accepted when a change is made.
Once you have identified and eliminated the causes of food refusal, you need to exercise a little more patience before your velvet paw finally starts eating as it should.
A valid question. After all, you shouldn't have to buy a pig in a poke!