Being very circumspect,I paid the medical insurance through the Internet banking.But,when i called the center for medicare insurance to make sure that i had paid the bill,they told me that i did not make it.I was so angry and asked why it happened.As a matter of fact,i knew exactly that i had paid it,and i still kept the received message.The personnel of center for medical insurance said that today their company's system was very busy due to it is the last day of the month,and now the only way to paid the medical insurance is that you should go to the bussiness hall of the company to paid it with cash.Oh,my god,this is really not what i wanted.