Which updates exactly....?
App updates can be set to WiFi only through the settings menu in the Google Play app, or otherwise turn off background data in the settings menu to limit other app activity.
Many apps also have a "refresh interval" setting which you can set to coincide with you been on a WiFi connection.
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)