Glo users: How to get 200mb plus #200 promo to call all networks

How to get 200mb plus #200 promo to call all networks in Nigeria for just #200 on glo network

This was the first step glo took to improve their data market, I started using it last year and its still working up to this moment.
Procedure

·         Buy #200 glo recharge card
·         Load the card in the following order
*223*card pin#
e.g (*223*12346789012435#)
·         You will receive an instant 200mb and #200 worth of calls to all network in Nigeria valid for 3days.