Consumer rights

Nowadays we frequently see situations where costumers are cheated and victims of misleading publicity.
Certainly all of us have a story to tell, for example bought something that is supposed do a lot of functions and at the end just do two or three of those functions, travels in those the hotel is not like the brochure and most usual situtions like go a restaurant and food is not good or waiter is rude. These situations are always embarrassing and I feel really angry when shopers say that they don't have any fault or that they can do nothing and we have to talk with manager, but unfortunately, he's not in that day.
Fortunately, today we have some organizations like DECO, that help us with or complaints. DECO write they in a magazine or talk with the management of the firm and, as an organization, they are more listened than only one customer. We also have the Book of Complaints in every shops and restaurants, there we can write our complaint and then someone will come and talk with us and the shoper.
There's no reason to not complain about something just because we don't know how to do it and where. I think that if we didn't like the service or the product, we should complain because it's our right and we're helping other people don't pass through the same situation.