Give the provider evidence that separates a local outage, persistent weak coverage, an account fault and a handset problem.
Collect useful evidence
- Full postcode and, where appropriate, a nearby landmark.
- Dates and approximate times of failures.
- Whether the problem affects calls, SMS, data or all three.
- Indoor, outdoor or both.
- Exact phone model, software version and SIM or eSIM type.
- Error message and whether another phone or SIM behaves differently.
- Result from the provider’s live-status checker.
Run two controlled comparisons
If safe and practical, test your SIM in another compatible phone and another working SIM in your phone. This can distinguish a device fault from a line or network problem. Do not erase an eSIM or reset the phone merely to create evidence.
Report through the correct route
Use the network’s fault-reporting or support channel rather than a sales form. Ask for a reference number and record what was tested. If the fault is widespread, invite the provider to notify you when the incident is resolved.
Persistent service problems
For an unresolved complaint, follow the provider’s formal complaints procedure and keep screenshots, dates and reference numbers. Coverage predicted on a map is not the same as a contractual guarantee, but evidence of a material, continuing service failure is still important.
What outcome to request
Ask the provider to distinguish a known outage from predicted weak coverage and an account fault. Useful outcomes include a repair reference, a network-status alert, a replacement SIM, confirmation of device compatibility or escalation through the complaints process. A vague promise to “reset the signal” is not a diagnosis.
Separate coverage from a new fault
If the area has never had usable service, describe it as a coverage limitation. If calls or data worked before and changed suddenly, give the date and treat it as a possible fault. This distinction helps support teams choose between coverage advice, mast investigation, account checks and device troubleshooting, and it reduces the chance of receiving irrelevant reset instructions.
What should prove the result
A useful report contains repeatable evidence: postcode, indoor/outdoor position, dates, times, handset model, software, SIM, affected services and whether another user on the same network is affected. Ask the provider to distinguish a live fault, planned work, congestion and normal coverage limitation, and keep the case reference.
- Include examples of failed calls or data sessions without sharing private content.
- Escalate through the provider's complaint route if the promised investigation stalls.
- Do not reset the phone repeatedly while the network is investigating.
Official sources
Facts checked: 25 July 2026. Network features, device menus and coverage can change. Recheck your exact phone model, software version, network and plan before relying on a feature.
