OP, if you did contact a lawyer I'm very interested in which legal remedies you are pursuing.
That aside, I think the best action one could take against Panini is to stop buying their products. $$$$$$the wallet$$$$$ speaks louder than any lawyer, letter, or informal complaint. The real issue is the tragedy of the commons, i.e. we accept what we're given and we figure that someone else [like the OP] will take care of the problem.
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