An anonymous call to the DA's office should make that grower feel better. If he doesn't get satisfaction with local law enforcement, try the Federal DEA office in downtown LA. Call from a payphone if it makes him feel better. Let the DEA know what happened. Tell law enforcement who and where. Give club owners names, dates, and amounts. Keep yourself anonymous. They will ask your name. One trick they will try to get your name is to tell you that they will do nothing if you don't give your name. Just don't give it to them. Just tell them the story. If the first officer doesn't want to listen, call back and speak to a different officer. You will find just the right Cop who hates Cannabis and wants to put club owners in jail. Yes, that one Cop is out there right now waiting for your call. If I were a dispensary owner, the last thing I would do is cheat my growers. If a cheated grower continues to make calls, law enforcement will take notice. Maybe a visit by the feds will wise this club owner up.
Growers are now forced to take some action to combat this unfair practice. Unfortunately, a brick through the window will not solve the problem, although we would certainly feel better. Harass the police by calling several times. Harassing the police will bring that club to the forefront of their attention; fresh on their minds. If we use law enforcement to attack the clubs that do us wrong, then club owners will surely learn not to screw growers, as club owners are forced to spend thousands to keep their asses out of trouble. Right now, the clubs are law enforcements' primary targets. Just think about it. The police get the merchandise, profit and perpetrators to convict all in one location. It doesn't even require a search warrant or undercover investigation. Easy money for law enforcement. We can't standby and do nothing as club owners screw us over!
This is a problem that growers are going to have to fix for themselves in the short-term. If you have a better plan to keep those few unscrupulous club owners fair, then please do share. There are options. Maybe an anonymous call to the IRS? Call the local Better Business Bureau? Something! Get someone to take notice. You may be able to win something in Small Claims Court.