Kkh B1 c section cesarean bill

Hello peeps. Recently I was told that B2+ is no longer available in Kkh (probably due to covid) . Was really disappointed as it is the only subsidised ward with AIR CONDITIONING!! Oh well it is what it is. Because air con is a must for me therefore I am probably going to opt for b1 ward! I'm planning to go for election c section due to low placenta but was wondering the bill size. Understand there is estimate bill size in kkh Web page but honestly the estimation doesn't tally with what I've seen on Asian parents comments. Take B2+ as an example. The total payable on the Web page states $0 for cesarean but I've seen feedbacks where people paid 1k++! For natural with the same ward class after medisave. So what's what? Hopefully someone who did cesarean at B1 ward can advise me the real estimate price! Else I'll pray for B2+ to open up in Oct!!!