Question: how to check data balance in airtel malawi?
Answer: Voucher Top up: *136*Pin#
Check balance: *137#
Check data bundle balance: *304#
Buy bundles(Data, Voice, SMS): *301#
Check or redeem bonus: *600#
Borrow Airtime/Kutapa service: *533#
Airtel Money: *211#
Bundle purchase, SIM Swap/Replacement, balance and many more options: *121#