In our country EL Salvador and think that others more this is used for r Express in writing or berval a dissatisfaction of something in a commercial, example: a buy a bed and came with legs Incompletas or broken the fabric of the mattress, takes a letter or spoken co nel Manager commercial salesalso it is used in writing to an agency of serbicios such as service water which comes very high at 40 receipts; It is therefore with the edefinicion read on this page I am confused which really is the meaning.