zong's package system is so messed up, make sure you unsubscribe weekly package then sub again, or else you could loose your balance,
what happened with me today is i was activating monthly call package on zong sim , i unsubbed the weekly sms pckj by sending unsub to 700 it said i don't have any sms packages activated, then i charged the balance of 400 and did the monthly package but after 10 minutes i am getting a text telling me that weekly sms package is activated on your number, I was like what?
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