Today supplier delivered 12 yards of brown mulch. We received a bonus also. Approximately thousands of what I believe to be bugs called knats(Spelling?). They were around the pile all day. When the pile was spread into the beds the problem seemed to be no longer apparent. Customer has not said anything. Supplier should still be paid correct? What are your thoughts on this total matter? This mulch was the color enhanced shreaded pallet stuff. I have never had this problem before.