Mobile Provider Tops Complaints Table With Network Issues Leading

Network performance accounted for the majority of the complaints, with customers citing dropped calls, slow data speeds and poor coverage in both urban and rural areas. The figures cover the most recent reporting period and place the provider ahead of its three largest competitors.

Customer service complaints also increased, including long wait times for support and difficulties resolving billing disputes. The data reflects submissions received through official channels rather than social media or informal feedback. The provider previously held a lower position in the rankings.

The latest period marks a notable shift, with its complaint volume exceeding those recorded by other major networks by a measurable margin.

UK mobile operators submit complaint data quarterly to the communications regulator, which publishes aggregated league tables to allow consumers to compare performance. These tables have historically shown fluctuations as companies address infrastructure upgrades or respond to external factors such as weather events and increased data demand.

The current data arrives amid broader industry pressure to improve rural coverage and 5G rollout consistency. Regulators continue to monitor whether operators are meeting licence obligations on service quality.

The regulator is expected to review the latest submissions in the coming weeks. Companies that remain at the top of the table for consecutive periods can face formal regulatory scrutiny or requirements to submit improvement plans. Customers seeking to switch providers can use existing rules that allow penalty-free contract exits when service falls below published standards.