I once bought a bag of Match Light coals, only to discover that were damp and wouldn’t light.
The store refused me credit or even a new bag. Match Light responded to my polite letter with a gift certificate for $20 worth of ML.
The corner store I bought it from is out of business. Match Light is doing very well.
I'm betting the jackwagons left the coal bags out in the rain, then sold them anyway. They didn't want to be discovered.