Train full of rubbish from previous trips

Yuck! This train is filled with rubbish from previous trips - newspapers, food wrappers, cardboard cups, etc. I'm disgusted at the way some people just dump their rubbish on the floor, on seats and on tables, and it's infuriating that the train companies (First Great Western Link in this case) think it's OK to inflict conditions like this on paying customers. This train arrived in Oxford from London over 15 minutes ago - plenty of time for a team of cleaners to have gone through it and given it a basic clean and tidy. I shudder to think what state the toilet is in, and can only hope that I don't have to use it.