There is no way and way to complain in the restaurant , this everyone, customers and operators, should have understood by now. It is fair to remember that those who sit at a table in a club are doing so at an expense , and have every right to be heard if the steak has not been cooked as agreed or the reservation has not been respected. On the other hand, however, it must always be kept in mind that an error can happen and it is advantageous for the customer to find the most correct way to be heard by a restaurateur.
The first step in order for a complaint to be non-sterile is to put it with the right education . Criticisms must be presented calmly, bearing in mind that many restaurateurs encourage their employees to take note of every note raised by customers. If you have problems with wine and glasses in particular you should contact the sommelier directly . However, this does not mean gilding the pill: be clear about the problem you want to be solved.
Know when to be heard
Often this is translated into being heard immediately, even if it is not always possible. The worst idea is to wait to get home and write a heated review on the venue, perhaps generalizing about an error that could be solved immediately. You never run the risk of entering the narrow circle of the worst customers of a restaurant .