I am with Vodafone.
My friend is with Spark.
Is it at all possible to top up their mobile? Either with my Vodafone App or thru internet banking (ASB)?
If so, how can I do this?
@LouisNot entirely sure why you would ask Vodafone how to make a payment to a competitors service.... But for your reference, a quick google found this: https://www.spark.co.nz/myspark/mymobile/topup/