Introducing “Friends & Family” from Zantel. Each time you recharge your mobile with voucher value of Tsh 1000 or above a bonus value is credited to your account with bonus airtime limited validity. Bonus airtime is valid across the Zantel network and airtime charges are depleted from bonus account to airtime account. Airtime refill validity remains the same.  Refer promotional Tariff for bonus airtime and validity.

PROMOTIONAL TARIFF

Limited validity time applies only to Bonus minutes; normal airtime validity period (180 days) applies to the voucher airtime.

Bonus airtime is not applicable for international calls.
Bonus airtime is not applicable for SMS.
Bonus airtime is only applicable within Zantel network.

So what are you waiting for?