Does sky automatically cancel your monthly sim payments once you switch providers?

[Abby18]

I’ve recently moved my number from sky to another provider. I never got a confirmation on whether Sky will stop charging me for my old Sim and I'm worried that they will charge me next month. I have fully paid off my phone bill but I'm not sure if the monthly sim payments are cancelled, what should I do? 

[PandJ2020]

Once you use the PAC (or STAC) then the new provider should advise cancellation.

As long as you are out of contract then the SIM will terminate otherwise you'll incur early termination charges.

Have you checked your future bills?  (Billing may continue a little longer than you expect due to in advance charging and bill generation timing - but any overpayment would be refunded)