Legal Question in Intellectual Property in Illinois

Who wrote you - them or their attorneys? If the did you can try to call and talk to the person who wrote the letter and explain what happened and see if removing the image will appease them. If you heard from their attorneys who are not house counsel, you can still try calling, but they may refer you to the attorneys and I would make the same offer as a starter. If you get pushback you will need to consider asking an attorney to assist you because they're not just trying to protect their rights, they're out to get your $$$ even if you use was innocent.

While I am an active member of the Illinois Bar, this Answer is intended solely as a courtesy to the Questioner based on an incomplete set of facts, so that the Questioner can be encouraged to obtain proper and complete legal advice based on all of the necessary facts.

This is not meant as a definitive answer but a general narrative to assist you in heading in the right direction. Any law cited or referred to specifically or generally may or may not apply to a specific set of facts. We nevertheless hope this is of some help to you.