I have a UK mobile and pay monthly. I am in New Zealand. How much will it cost my wife to call me from her UK landline please
If your wife is using her UK landline to call you New Zealand (roaming on your UK mobile) then the charges will be up to whomever provides the landline service (i.e BT etc).
This reply was of no help. It would have helped to know:
Will Vodafone level an addaitional charge on BT
Will BT be aware of the physical location of the telephone
Will Vodafone level any adaitional charge to my account