Hi everybody!

I am planning to take iphone plan under celcom. And i realize the contract give benefits more compared to buy outright. I also planning to take 2-yrs contract since i can get cheaper price (rm73) for 3gb data as compared to normal data plan (rm98, rm40 + rm58 for 3gb data). However, my concern is on bill shocking like how it happen to maxis. Just to ask, could it happen to celcom? I'm still a student and just afraid it will happen to me 
And in your opinion,  is it worth to get 2 yrs contract under celcom?

Thanks!