Moldy bread

I have to say that I am very disappointed in the quality of the breads as of late. I got a loaf of bread just Tuesday with the best by date being for Saturday. Bread have been untouched and unopened till this morning and I find there's already mold spots on a few slices. Not only that, but it's not the first time it's happened either where I got a loaf and there's mold on it a day or two later.