@Tariqur1
Can you try your sim card in a different phone, if it is the same, then your sim card has failed, and you will need to get a new one.
You have 2 options, pop into an o2 store tomorrow with photo ID and ask for a new sim card, or you can call or message o2 on social media
From another phone call 0344 809 0202
If you message O2 on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)
- Xperia 1V - o2 and Spusu
- Pixel 8 Pro - o2 and Vodafone UK
