When you refunded the train ticket you bought today, you were charged more than 30 yuan. This is usually due to the refund handling fee. When a train ticket is refunded, the railway department will charge a certain handling fee in accordance with regulations. This fee is usually calculated based on a certain proportion of the face price of the ticket. The handling fee of more than 30 yuan may be due to the higher price of the ticket you purchased, or the refund fee standards set by the railway department for different situations. For specific circumstances, you can consult railway customer service for specific handling fee standards.