If you're looking for how to check Mobilink postpaid bill via SMS, all you have to do is to dial *1111# to get information of your bill. If you have subscribed to a postpaid package, and want to check its balance, you simply have to dial *2222# to check remaining free Minutes, SMS and MBs.
Purchase a Jazz scratch card/voucher from your nearest Retailer, Franchise or Customer Care center, and pay your postpaid bill using the amount on that card/voucher. To make payment, simply type *123*<14-digit code of card/voucher># and press Send/Call from your Jazz number.