Hello there,
Try to transfer number on another browser and make sure it is the latest downloadable version. For example: Goggle Chrome or Internet explorer. Also, try deleting the cookies and temp files if you still face difficulty in accessing it.
If still facing any issues, please contact giffgaff agents from here:
https://giffgaff.com/support/ask and give them the below details:
>Temporary giffgaff number:
> Keep number:
> PAC code:
