I haven't received my Samsung promotional space?

@Dennis: Dropbox does not remove the space earned through referrals (inviting friends). If space is being removed, then it's from a time-limited promotion that you were a part of (Samsung bonus, Space Race, etc.).

@Marco: Contact the team admin for the business account. Ask them to contact Dropbox Support and ask to have your previous account restored. Only the team admin will be able to make the request because, technically, your account belonged to the business once you merged it.

@Maxim, Maja: Go into the View all space earned section and look for the bonus that was applied to your account. You should see the date it happened. The Samsung bonus is a two year promotion, so you should be able to figure out the remaining time from that. Also, as you start to get close to the expiration, Dropbox will notify you.