Hi @3233
Although VM and O2 are now a joint venture called VMO2, their systems are still separate. VM don't have access to O2's and vice versa.
Because of this if you have a VM bundle that includes the Volt sim then you make a payment to O2 for the sim card, and a payment to VM for any other items included in your bundle.
It will be some time before both systems are amalgamated together.
DaveI don't work for Virgin Media.
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