Do not read only as far as the deadline printed in bold. Record the sender, represented party, challenged advertising, stated legal basis, requested restraint, demanded information, claimed costs and threatened court steps separately. Attachments and incorporated references are part of the review.
The exact description of the alleged infringement is particularly important. Does it concern one statement, a price comparison, customer information, product presentation or an ongoing campaign? A general allegation of misleading advertising does not yet show which wording, audience and overall impression are legally challenged.
Prepare a short chronology as well. When was the advertising first used, in which media did it appear, who approved it and when did the letter arrive? This sequence helps assess alleged repetition and the current need for action.