Kat,
I hv paid S$63 too after GST, guess the price is the same.
How come u can exchange the pdt free?
The nearest train station is Raffles Place. After which you need to walk abt 5-10mins. The building is called China Square Ctrl. You will hv to take a lift to the 2nd flr. Though there is an escalator that leads to the 2nd flr (shops), it is not located there. They are located in the office building. Once u r there, call DRX and they will guide u cos is difficult for me to explain it to u thru here