There're a few burgers involved here.....
The First one was the original burger - Howe Yoon Chong, when the minimum sum was passed.
Later, pertaining to minimum sum increase and its deferring, it is Lim Boon Heng, later passed over to Gan Kim Yong, who made it more complicated and further delay to the draw-down of the minimum sum.
But all these are announced during National Rallies by LHL, and when he announced it, the CPF website already updated it.
Their motto is "change first, tell you later"..................no referendum, nothing of this sorts. I'm not even sure it was debated in parliament at all, since they selectively debate stuff only. The transparency is totally absent, since parliament is 2/3 majority represented by one single party, bills will be passed and even the constitution can be changed or explained away easily.
Tell you this......we're truly screwed and most don't know it, because it is made difficult for layman to comprehend the enormity of the opagueness. It's like, what you don't know, you don't know how to question.