Mouldy bread

I have a blue ribbon white bread with the best before date as the 7th Feb 26, it got mouldy yesterday 5th Feb 26 and I had to throw it away. It was almost a full loaf!!! This isn't the first time they the bread gets mouldy before the best before date. Blue ribbon bread used to be the best and you could use it a few days after the best before date but for the past few months I can't keep it too long. Blue ribbon needs to do something about this