Requested STAC code by mistake

[Ian1968]

I was trying to cancel the contract for my iPad which is on sky. And I requested a STAC code but seem to have requested it for my mobile device which is O2 but as iPad and phone number were linked I think the STAC request came through for my mobile number which I don’t want to cancel. 
I will have to phone sky regarding my iPad but how do I go about cancelling the STAC request for my O2 mobile phone number?

[Cleoriff]

@Ian1968 

You don't have to cancel. Just don't use it. 

You can contact O2 if you wish,using any method in this guide

Guide: How to find help & contact O2 

Guide: Cancelling Your Contract 

[Enlli]

Provided you haven't given it to any other network you are OK

If you have you will need to contact them