The bin was full on Monday. You found out on Thursday.
The supervisor on a big site knows exactly which container is full and exactly where it sits. He knew at seven in the morning. The problem is what he's supposed to do with that.
He can call the office — if he can find the number, if someone picks up, if he can describe which bin on a twelve-acre site and where it got moved to since the last haul. More likely he shrugs, throws one more load on top, and gets back to running his crew. It is not his job to chase your dispatcher.
So the bin overflows for three days, and the first you hear of it is an angry call from the GC.
Meanwhile your driver rolls onto that site on Thursday with a work order that says "swap the 40-yard by the north gate." There is no bin by the north gate. It got moved to the east lay-down area on Tuesday. He spends forty minutes driving the site looking for it, or calls dispatch, who calls the GC, who calls the super, who is now at lunch.
None of this is a lost bin. You know roughly where your containers are. What you don't have is a ten-second way for the one person standing next to the bin to tell the one person who can dispatch a truck. That gap is where the wasted hours live — and NotifyMeBins is built to close it and nothing else.