In case of basic problems with mail or parcel delivery, you can complain to Bundesnetzagentur.As a customer of an Internet, mobile or fixed network provider, you can find out about your rights and submit inquiries and complaints to the Federal Network Agency.In rare cases, cosmetics can trigger undesirable effects such as skin irritation. Information from consumers on this is important for authorities and manufacturers. Manufacturers or retailers must report effects with serious health consequences to the authorities.If you suspect radio interference, you can report it to the test and measurement service of the Federal Network Agency.As a manufacturer or importer of cigarettes, roll-your-own tobacco, and hookah tobacco, you must print text image warnings on your cigarette and tobacco packaging. You can obtain the image files from the Federal Office of Consumer Protection and Food Safety.Do you believe that a company has violated the German Investment Code? Then you can lodge a complaint with the Federal Financial Supervisory Authority (BaFin). You can use the general complaints procedure to do so.Novel tobacco products, for example heated tobacco products, may only be placed on the market if they have been approved. You can apply for approval from the Federal Office of Consumer Protection and Food Safety (BVL).