Human identifiers (cards, key rings, watches, mobile phones with an integrated NFC chip)
Cards can be permanent, personalised or prepaid:
Permanent – a presentable office card with your number. It is issued on arrival, used for the entire stay, and returned on departure;
Personalised – the card can be pre-ordered or made on arrival for a separate fee with a name (photo) (as a souvenir, discount for the next visit, etc.)
Prepayment – a partial (advance) deposit of money to pay for certain services
