1. According to government regulations on the measures to be taken by public theaters and venues to control the spread of the epidemic, ticket holders have to be ticket checked one-by-one and present their passport or ID card, before they can enter the venue. So everybody please make sure to note the passport number and full name of everybody you intend to buy tickets for. The process is much the same as with train tickets. 2. Please make sure to have a scannable health code. 3. During the entire concert masks have to be worn! 4. Due to government regulations, tickets, once sold, can't be refunded or reimbursed. In case of cancellation due to the pandemic situation, this rule does not apply and tickets can be refunded.