Hi @5andyJobanputra.
Welcome to the community.
I'm sorry to hear your phone has been stolen.
To apply a block you will need to get in touch with our customer care team.
The team will then be able to send you a replacement SIM and if you have insurance get you through to the relevant team.
Should you need a SIM quicker, you also have the option to visit your local EE Store with photo ID.
Katie
