Hello, the Postal Savings Bank of China Jinbao Green Card is a debit card and does not provide overdraft services; the Jinbao Green Card is a co-branded card within the province. Cardholders can use the Jinbao Green Card to travel in other places within the province or through the UnionPay network. , ATMs from different banks can handle deposits, withdrawals, transfers, fire protection and other services; they can also handle settlement services such as exchange, collection and payment. I hope my answer will be helpful to you.