Yes, I have two credit cards, one from Agricultural Bank of China and one from China Merchants Bank, and I have been using Shengbei APP to pay off the credit cards to cushion the repayment pressure. And the interest rate is lower than other products I have used. Check to see if the Shengbei APP you downloaded has been updated to the latest version. If it doesn't work, you can consult customer service "Xiaosheng" online through the Shengbei official WeChat account. Shengbei’s official WeChat account is currently the only official customer service channel of Shengbei.