If passengers are upgraded (e.g. economy class business class), the airline company cannot request any supplementary payment. If, on the contrary, passengers are downgraded (e.g. business class economy class), the airline company shall provide them reimbursement, that goes from 30 % to 75% of the price of the ticket, within seven days. Upgrading and downgrading: air passengers’ rights If passengers are upgraded (e.g. economy class business class) by the airline company, the latter cannot request any supplementary payment. If, on the contrary, passengers are downgraded (e.g. business class economy class) by the airline company, the latter
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