If after 2 week you have not received satisfaction, you must take the ‘consumers office’ copy to that office i n the town hall. They will then pursue the complaint. If they fail to resolve it, they pass it on to another government office.
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I have found usually,  that when you insist on the form the complaint is resolved immediately.  In usual   circumstances the system works extremely  well.
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The biggest problem is that people are reluctant to ask for the form and to complete it.