Where to take a complaint
If you really want to have a complaint to get through then always go to a store and wear a spy video camera. When you call the company to make a complaint, tell them you have a video of the whole incident and then see what happens. If nothing does them put the video online for all to see. When enough videos go on line, then, maybe, something will be done.
Yes, there is always a chance that you might be sued. But like I said, if enough people complain then things just might change.
If you do not pursue your complaint, then you can be guaranteed that nothing will be done.