i have experienced this before, I emailed FSM, and this is the reply, "Please be informed that the prospectus of RHB Islamic Regional Balanced Fund - MYR has been expired and thus you do not see the fund appear under the buy list. Currently, we have uploaded the new prospectus at our website and you can now login to purchase the fund."

On the same day, the buy option is available again. FYI, I mailed them at 12pm and got the reply at 245pm, so just in case anybody else facing this problem, I think it will be better to give them a call.