I stayed there during early July. I have opted for c-section with epidural and stayed in a single bed ward. My total bill came up to $5k plus, $3500 less from medisave, so paid $2.2k+ in cash.
As for the booking of the ward, the nurse from my gynae has helped me to book and there isn't a need to place any deposit amount. She asked me what kind of ward do I prefer when it was during my 3rd trimester.