I spoke to several Maxis CS agents. They told me that we cant trust the iphone data counter. It takes 7 hours to update the counter.

That day, I got billed RM5k plus but luckily there's a limit to charging so only RM250.

because, if we have apps like this. Maxis will:

1. lose money because everyone won't accidentally exceed their data usage.
2. users will make full use and maximize their data usage base on their data plan.