I’ve submitted more than 10 validation letters, and have never had a problem with approval. The letters I’ve submitted are in PDF format on the IP owners letterhead, and signed by a representative of the IP owner. The verbiage is typically along these lines:
IP OWNER (the “Licensor”) hereby declares that, as at the date of this letter, SELLER (the “Licensee”), with its principal office at XXXX, COUNTRY, is our authorized licensee to develop, publish, sell, digitally distribute, transfer and in other ways make available products bearing the trademarks, copyrights, characters, designs, and visual representations associated with the IP OWNER characters as identified below pursuant to the current license agreements defined in XXXXXX contract:
Licensed Property: The following characters character as depicted in Licensor’s style guides:
• XXXXXX character
Licensed Works: Digital stickers, digital applications, and digital themes for use in messenger services and on desktops to be purchasable and downloadable on mobile devices and PCs as keyboards and screen saver, desktop backgrounds and backgrounds on portable devices.
Licensed Territory: European Union, United Kingdom, Russia, Turkey, Israel, India, South Africa, Bahrain, Qatar, Saudi Arabia, United Arab Emirates, Australia, New Zealand
Term of contract: 1st March 2021- 31st December 2023
This authorization shall remain in effect until 31st December 2023, or until such time as it is revoked by IP OWNER.
Please feel free to contact the undersigned should you have any questions.