Hi Ruth, your service should now be back to normal. Sorry about that!
Please see some info below about last night from our status page:
On Thursday 3rd October, around 1% of O2 customers experienced some difficulty making and receiving calls and texts, or using data. This was the result of unexpected congestion caused during routine upgrade work on our 2G and 3G networks. The problems were intermittent and resolved in a matter of hours.
We apologise to those customers affected and would like to thank them for their patience.
As we rollout our nationwide 4G network, we are upgrading our 2G and 3G service to reach 98% of the UK population both indoors and outdoors. Our customers can keep up to date with our progress by visiting our Network page on our website.
