First, try not to worry. You may have been deactivated for something as simple as swagbucks needing to verify your account. Not that big of a deal... However, you could have also been deactivated for things like:
E-mail TSG (The Swag Guy) at email@example.com or you can e-mail firstname.lastname@example.org. They should be able to give you a reason as to why you were deactivated. They are very helpful and understanding and things should be resolved in no time.
- posting an active code
- spamming your referral link (not just on swagbucks FB wall, but on any other blog or forum that does not allow overposting of anykind)
- having more than 1 account per household
- making multiple accounts
- attempting to cheat the swagbucks system in any way (this includes posting "how-to cheat" videos)