Edited sentence: Adult ticket fares have increased many times over recent years, yet there has been no increase in service.Change sometimes isn't dispensed when it should be, money is rejected and others simply don't work.For exmaple, trains are just as delayed if not more since the price jumps.Graffiti and crime is also a major problem all around the metro network because of this.Machines like this lead to passengers dodging ticket fares who normally wouldn't.Many Metro customers are ending their travel on the Metro and changing to travelling by car or other public transport because of the ever-increasing ticket prices.Many stations and trains are unstaffed or get neglected.The Metro's ticket machines at most stations are so old they are nearly obsolete.This leads to high levels of litter on the trains and in the stations which in some extreme cases is left for days without pickup