Activation Code Reset for Cubase elements 7

I bought Cubase Elements 7 yesterday. Went to load it on my iMac and found the Yosemite issue. I wasn’t aware that there was a fix and completely gutted decided to load it instead onto Windows which I’ve got bootcamped on my machine. Even more gutted today to find there is a fix from Steinberg and after excitedly loading it up on my iMAC realised the activation code wont work as I used it on Windows. Surely people buy new computers and want to keep their software they’ve already purchased so with this in mind I wondered if anyone might know how I go about reactivating the installation code? Grateful for any help.

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