After receiving a copyright warning letter, you should, above all, take the deadlines seriously and not sign or pay anything hastily. You should also not contact the other party without careful consideration.
Save the complete warning letter and document the use in question. Depending on the case, this may include screenshots, URLs, license documents, invoices, or information about who used an Internet connection or social media account.
Even if the underlying allegation is generally accurate, this does not automatically mean that all claims are justified in the form and amount demanded. Claims for injunctive relief, liability, damages, and attorneys’ fees must each be examined separately.