DALTILE QUALITY ISSUES

Anyone having problem with glazing? I have tiles with little or no glazing and others with actual drips from clogged spray nozzles that are actually fired into tile. The tiles with little or no glaze were inspected by a Daltile rep and he told me they were within company specs. Today we opened 10 cases and 50 tiles are not fit for use.
The extra expense from is is becoming outrageous.