A PUK code unblocks your phone so you can unlock it (use a sim from another provider) @beesbeesss
If you meant PAC code (moving your phone number from one company to another) then you might need to submit the request again - we see requests made when starting a new deal not work quite a lot.
See the helpful guide linked below.
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here