I'll chime in on this one here... Bought the retail copy from the local Best Buy, however, when registering, it just keeps telling me I have a bad serial number. No response yet from tech support. The serial number is legible and I've checked it time and again.
All I ever get from the site when I try to register is:
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Sign Up Error - Invalid Serial Number
The serial number you have entered does not belong to the email address you have entered. To register this serial number you must use the same email address in which you used to purchase the game.
If you do not have the game yet please support our hard work by purchasing the game.
Buy Sins of a Solar Empire
If you believe there is an error with your account please contact
[email protected] for further assistance. Please include your serial number with your email but please DO NOT post your serial number on the forums.
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As this was a retail copy, and not one downloaded from the site, I didn't have a prior registration here that was used for this number. The only thing I can think is that they have issued duplicate serial numbers between their online purchases and retail store purchases.
This is extremely frustrating as I have a legitimate purchased copy.