I've got a Virgin PAYG sim and I'd like to activate barring but when I try any of the barring options on my phone I get 'unexpected response from network'.
Can anybody else do this with their phones? Thanks
I don't think any of those codes work on Virgin, the same as call forwarding. Intentional Call barring can be set from your account page.
Other than that it is usually an app or your phones firmware that lets you reject individual numbers.