Top-up voucher help

I had this question sent in by a reader who’d like to remain anonymous:

Do any of the MIR readers have any research about the cost to operators of top up vouchers – or can they point me in the direction of relevant research?

Any ideas?

By Ewan

Ewan is Founder and Editor of Mobile Industry Review. He writes about a wide variety of industry issues and is usually active on Twitter most days. You can read more about him or reach him with these details.

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