Please feel free to contact us for changes on your tickets. Upgrades are possible to be done. Ticket transfer can be only under specific circumstances that doesn’t make problems in the ticket validation, which the assessment of this is all on the operator who receives your request. We don’t guarantee any ticket transfer. Ticket transfers may require additional charges. Downgrades and refunds are only permitted if the cause is reasonable, which will be up to the operator to decide on this.