All the CW to 2nd link, once reach Malaysia side, just queue at the Bukit Indah queue. The CW staff in front will shout out where that bus is heading, when you heard Sutera Mall, board it. The bus will stop in front of the mall.
Coming back from there, same waiting at the front of the mall. Board when you see one stopping. Ask before you board.
Weekend is the busiest time, so stop service is like siao ah!!!
Btw in Malaysia side, don't need to see the CW number, only when you clear Malaysia custom, coming back to SG, queue for the right CW bus to go to the destination you want in SG.