A couple of years ago the GSCC changed it so that you had to claim your travel expenses after your placement. That was obviously frustrating because you had to pay it yourself initially, but it was fair in terms of the fact that everyone got back what they had paid out.
In my placements I had one which I had to get two buses to, and then also go out to visit service users, which often involved another bus, and my second one was quite close to my house, and I paid for a year's bus pass which was a lot cheaper than paying every day, plus it lasted me twice as long as my placement was.
Something does need to be done about the travel expenses, some people at my uni had to pay to go to the Isle of Wight every day for their placement, which cost them ridiculous amounts of money. One year there were delays with bursery payments as well, so everyone had to pay that for weeks before they even got any money from the GSCC for that year.