@Peekaboo1 you will need to call customer services to report your device lost get your old Sim blocked and request a replacement Sim card. You need to do this asap as you could be liable for any charges that are incurred because of someone using your Sim card if you didn’t have a Sim pin on it. Thats assuming your sim is removed from the lost device and put in a different device because your device is password protected.
You can report lost devices to EE 24h a day please read THIS
Top tip always use a sim pin for the sim
To contact EE Customer Services dial 150 From your EE mobile or 0800 956 6000 from any other phone.
