Excuse me, how to check the phone bill of Wanzhong's mobile phone card in Chinese mainland?

If it is a stored-value card, you can check the phone bill balance by dialing the operator's special service number purchased by 00852+. If it's not a stored-value card, there is no way to check the phone bill by phone for the time being, and you can only check your call minutes through the special service number. At the end of a billing cycle, you can check your phone bill last month from the operator's website or get it through electronic bills.