Yes, Postal Bank of China has its own online bank. Merchants who register online banking of China Postal Bank can pay directly with online banking of Postal Savings Bank. On other e-commerce platforms such as Taobao, as long as the merchants open the credit card payment channel, they can also choose credit card payment and jump to the online banking page of the Postal Savings Bank for payment. If they don't directly open credit card payment, they can use the credit card of Alipay platform to pay quickly. Sign the contract once (enter the credit card account number, transaction password, mobile phone number, ID number, mobile phone verification code and other information for the first time), and then you can pay directly with Alipay's payment password. Moreover, there is no special limit for fast credit card payment of the Postal Savings Bank supported by Alipay, but the online payment limit of the Postal Savings Bank itself, with a single payment of 20,000, a single day of 20,000 and a single month of 50,000.