o2 don't give timescales for fixes due to a number of factors outside of their control @Gabhan (access to the mast, availability of parts, etc).
The only things you can do are to keep reporting the issue and ask others to do the same.
See some help in the guide below:
Guide: How can I sort out my network issues?
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
