No caller ID

[#1]

Hello. I've had Plusnet for a few months now and my caller ID has never worked.
I am being billed for the service but Calling *#234# or *234# it says "The service requested is not available on this line"
Caller ID worked with my previous provider so I know the problem isn't my phone.
Could someone please look into this for me?
Thanks.

[#2]

For some reason it hadn't been added to your account, I've ordered that now and it should be active later today.
I can see you've paid for 3 months whilst it hasn't been on, I'll go refund those now.

[#3]

Thanks for the quick response Chris.
I'll check it out later.