@Di7
If due an upgrade you can upgrade to a cheaper tariff.
Check uswitch offers.
https://www.uswitch.com/mobiles/compare/sim_only_deals/o2/
If not, your only choice is to reduce your data under tariff details in your MyO2.
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.
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