Network to sell the subway ticket volunteers

Beijing subway: need to volunteer I use electronic card ticket carefully verified identity Somebody peddles online volunteers of Beijing metro train ticket. Network screenshots recently, people have found that in the secondary trading platform have sellers sell Beijing ticket to ride the subway volunteers, the seller said that the ticket for his volunteer service income, buyers can capture with sellers to provide documents to vote for the subway at the end of any one-way ticket. Yesterday, the Beijing subway staff said...