Activate a new sim and cancel old one but keep number

[Askhgfhhgdd]

I have a sky mobile account. I pay £8 for 6gb data. I ordered a new SIM card from sky which is £5 for 5gb data. I think I have activated new sim but my account and billing still says £8 6gb. I want to stop the £8 one and continue with sky mobile with £5 5gb

[PandJ2020]

The SIM you have order is in addition to your existing SIM and has a new number - so you're paying for two.

Unless Sky are prepared to apply the offer to your existing SIM (expect them to refuse as the offer is for additional SIM's only) then the only solution to keep your number is to transfer it out of the network and back to the new SIM.  (You cannot use a PAC within a network)

[MAGNAREZ]

I am currently going the number port. Ported to voxi with no issues. Completed today around 11:30 Number active. Now trying to port back and it says "Sorry, there has been a probkem, we cant transfer your number, please try again later" Do i have to leave it for 24hrs or somthing???