Look you have put my contacts as unknown and I tryed my sim in another phone and it just showing unknown calls in both phones so I know it a network problem and you need to rest it
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Currently using: Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)