I resigned from Suzhou and returned to Xi'an in January this year. At that time, I transferred all the social insurance. Now the company in Xi'an has to pay social insurance. Why can't the medical insurance in Suzhou be transferred back?

Insurance is regulated by local governments. Whether it can be transferred in or out depends on the regulations of the place where the insurance is paid. In addition, the personal payment part of insurance used to be withdrawn, but now it is basically impossible. If the government does not accept it, then the money will only be said to be in vain. This is stipulated by the government, and ordinary people have nothing to do.