Chicken should not be spongy!

In my defence I have been ill and the idea of cooking has not appealed most days. But that really doesn't excuse buying a Sainsbury's Chicken in Mushroom and Wine Sauce and Mash ready meal from their Great British Dishes range. The sauce was nice enough, the mash was lovely but chicken SHOULD NOT HAVE A SPONGY TEXTURE. I bit in and it was immediately clear that either it was a reconstituted piece of meat or that it was a genuine breast but had been injected with water to reach a standard size. Either way, it was horrid and a complete waste of money so I'm back to only eating free-range chicken. Obviously free-range chicken is more expensive than the intensively reared stuff but, even putting aside any ethical considerations, I'd rather have a small amount of the better stuff anyday.