@victor2019
Sorry to hear you have lost your phone, there is a little bit of good news, when you report the phone/sim as lost, you will be sent a replacement, and your credit will be transferred across to the new sim in your account, please note, when you order a replacement, it will be the only sim you can use, so you will have to wait for the postman, However, you do have a choice, if you dont report the phone/sim as lost you can do a sim swap, this will be a lot quicker but thats up to you......
If you don't match these two conditions, you should order a replacement SIM through the Lost & Stolen procedure.
you must be logged in to your old account and follow the sim swap procedure https://community.giffgaff.com/t5/Using-giffgaff/What-is-SIM-Swap/ta-p/7320084which will transfer your old number and previous credit to the new sim.
