I just pay my bill this evening and also had asking about that 3G limitation.
Me: Is there really a 3G limitation in this broadband?
Promoter: Yes it is, its writed in term and condition.
Me: Yes, i already read that term, but my friend which using this broadband has downloaded more that 3G i think coz he already download couple of movie. How was that append?
Promoter: Maybe the total amount of ul/dl havent reach 3G.
Me: 1 movie already took 700MB, if 5 movie got about 3.5G already.. i think he already download more than that.
Promote: Mybe ur friend got lucky, the user suppostly cannot dl/ul more that 3G.
Me: So, what happen if i exceed that 3G ul/dl?
Promoter: You cannot download anyting, but you can still surfung internet.
Me:

(im making this face) (in my heart - internet surfing dont even ul/dl anything? noob!) thanks.. (i leave that man with my weird face

)
Last time i already ask the same Q at Maxis service centre at KLCC, they told me that 3G limitation not implimented. But today i got different answer at Midvalley