If a key does not work, we will replace it immediately free of charge! It can happen with problems, but it is extremely rare, and if it does happen, you will get a new key immediately. You take no risk with us. If you have followed all instructions and downloaded with the link as described, and the key does not work, we are there for you to solve the problem. In this case, simply fill in the fields below and upload a picture of the error message and you will receive immediate feedback from us.