1. It is the duty of railroad companies to keep their ticket offices open for the sale of tickets for a reasonable time before the departure of trains, and the rules of the railroad commission of this State prescribe the method by which such duty shall be performed. It is the duty of passengers to use proper diligence in supplying themselves with tickets before boarding trains. Southern Ry. Co. v. Fleming, 128 Ga. 241 (57 S. E. 481, 10 Ann. Cas. 921).
2. A passenger who has not been afforded a reasonable opportunity to purchase a ticket before boarding a train can only be charged the reglar ticket rate for his fare, and he can not while en route be required to