The very object of having a "Postpaid" is useless because of their billing service.
I had one, with 2000rs as a Security Deposit. And lo and behold ... they block my line for 'non payment' of bill of previous month of ... RS 700 APPROX! I never GOT the bill. They said its "My fault". Like bloody hell its my fault you dont bill me ... or keep a dumbass blocking policy to begin with. Goddamn them! I send a guy to pay them, and they tell me I have to pay the whole bill till date fo around 1200, not just last month outstanding. So he comes back. When I later give the money at another Franchise ... ti registers in 3 days and I sit with no connection for 3 days while having payed these guys 2000rs Security Deposit AND the whole damn payment.
And these goddamn CSRs did nothing. Called them like 6-8 times! Nothing ...
The problem is the billing. You have to pay every month regardless of the bill. This is not so with other services. I was (and still am) using Warids Postpaid and the bill had to be paid to avoid blocking when I reached 90% limit. Whats the use of a security deposit if they block you anyway for UNDER 50% usage just beacuse you didnt pay the month.
Telenor Persona is crappy and so is their customer support. I stil havent got my 2000 back ... they made me "Come back later sir" ... I just forgot about it after a couple of times.
With your SMS usage, your going to be fine with Prepaid actually. U Prepay personal recommendation.