How to transfer balance to another Vodafone Prepaid customer

Now a Vodafone Prepaid customer can transfer balance to another Vodafone Prepaid customer.
The donor needs to dial *131**#
For example.
*131*15*9820012345#

Service is only available between Vodafone to Vodafone numbers, excluding Retailer numbers.
Both donor as well as the receiver mobile numbers should be active on the Vodafone network. A subscriber should have at least completed 90 days in Vodafone network to be able to transfer balance to a receiver, or should have completed at least 30 days to be able to receive balance from a donor.

A subscriber would be able to send balance once a day and receive balance up to three times a day.