What should I do if the annual card of Hefei Aquarium expires?

Buy again. Official website information of Hefei Aquarium Annual Card shows that valid certificates and personal information are required to purchase Hefei Aquarium Annual Card. The annual card is only for the cardholder's own use, and may not be lent to others, returned or lost. The annual card needs to be purchased again after it expires, and the unused annual card will automatically become invalid. The annual card does not support refund unless Hefei Sea World is closed or under special circumstances.