That is most ridiculous Christmas present from service provider. Don’t know what to do being cut off the network while abroad and with useless customer service.
i have been send the following text
Hi. Just a quick update to let you know your request to transfer your number to your new giffgaff SIM is underway. It should be completed within 24 hours. If this wasn't you, please raise a case with a giffgaff agent here: giff.ly/2DEItsv
any advise will be much appreciated