$15 for 1GB usage with Low Cost 3G Data Plan from Exetel

Are you a huge data user with your phone and do not make a lot of calls? Then Exetel's new low cost 3g plan is just the right plan for you. They have the EM A AND B plans but I'm not familiar with the difference between them. This costs roughly the same with the plan from 3 which costs $15 for 1GB but with Exetel, the minimum usage is $0 so if you use less data for a particular month, you are also charged less. Exetel just recently imposed a $25 refundable activation fee but you get back when you stop your plan. Also, if you know an agent or sign up with an agent, they can give you a $10 cash back which you can use for a further 200MB valid for 3 months.