The letter should contain:
Order reference number.
Old package name.
New package name.
The reason of the modification request.
The letter should contain the following phrase: “(your company name) won’t adopt or redistribute the old activation key anymore in public application. I understand that the use of that old activation key will be considered illegal and subject to lawsuit as per unlicensed use of the software RadaeePDF SDK for Mobiles.”
The above procedure is available until 6 months from the first activation key emission.