I accidentaly registered 2 accounts on the same email, could that mess up my order or anything similar?
Email support@stardock.com and ask them to merge you accounts, if you don't want 2 of them for any specific reason.
I hope it doesn't mess up my order...
I would say the risk of things being messed up is pretty much negligible.
There are many great features available to you once you register, including:
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