I have recently purchased a full version of Reckon Accounts Personal Plus 2015. I have decided to upgrade after the trial period had ended. During the installation, it requests the Installation Key which comes in the format of 2 sets of 6 numbers. However, the installation key that has come with the product is 4 sets of numbers (3 sets of 5 and 1 set of 6). How can I install the product when the installation key is completely different to what is being requested?