As per our purchase policy, we do not offer refunds for DreamHack tickets to events in the U.S. and Sweden. We might however be able to downgrade your ticket if that's of interest. If that is interesting, or if you believe there was an error with your payment, or you wish to dispute this purchase, please contact our ticketing partner Tixr through their support page at: https://support.tixr.com/support/tickets/new
(Sweden) But doesn't the "Distansköplagen" apply?
Distansköplagen does not apply to event tickets. Read more here.