Need to change phone number

[Miss+D+E+Lacey]

I have a phone number  via sky and want to change it but not get a new sim as I'll have to pay for another contract and this one hasn't run out. 

[GD1]

@Miss+D+E+Lacey  You can't change a current number unless you cancel the current sim and order a new one.

As long as you've had the sim for  12 months or more you can cancel it.

[Daniel0210]

@Miss+D+E+Lacey 

And under normal circumstances you can't cancel a sim unless you've had it for over 12 months.