If the required information on a supervisory authority is missing from an imprint, a warning under competition law directed against this is justified. In such a case, the BGH is of the opinion that there has been a noticeable breach of Section 5 (1) No. 3 TMG. If a pre-formulated cease-and-desist declaration is attached to the warning letter, this can be used when interpreting the warning letter. If this shows that the creditor makes the individual complaints the subject of separate attacks, such as when he asserts separate cease-and-desist claims with regard to various advertising statements in an advertisement, these are separate attacks (BGH, decision of 21.11.2018, ref.: I ZR 51/18).