Cannot transfer old number to Sky

[Half-Life25]

Ok the problem is this. I have a Sky mobile contract and ordered a second sim for my sons phone onto my account. He was on GuffGaff, so when the new sim arrived, I put it into his phone and after many attempts finally got it activated. He was using the new number that came with the new Sky sim, but wanted to transfer his guff gaff number across. We got a PAC code from Vodafone (presumably G/G use the Vodafone network). Error messages saying cannot transfer at the moment  try again later, which we have been doing for the last few days with no success. And yes, his phone IS unlocked! 

Any ideas?

TIA

[caesarome]

Give Sky a call on 150 to see if the can take the PAC code and process it for you.

[PandJ2020]

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@Half-Life25 wrote:

We got a PAC code from Vodafone (presumably G/G use the Vodafone network).

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Nope - GiffGaff runs as a MVNO under O2.  (Same as Sky)

If you have a PAC from vodaphone I'm not surprised it doesn't work...

[63johnw]

This is the giff gaff procedure @Half-Life25 

https://www.giffgaff.com/help/articles/how-do-i-get-a-pac-code-to-leave-giffgaff