Call 0203 807 5446 for free general guidance about UK mobile topics. The advice service has no fee; calls use an 0330 number and normal telephone charges may apply. We do not describe this as a freephone line.
A useful call starts with a general description: the provider, the type of service and the part that is unclear. You can explain a bill category or a switching question without giving a full account number or sharing private documents. We cannot make changes on your behalf.
We do not publish unverified opening hours or promise continuous availability. If the question involves a live outage, a lost SIM, a payment dispute or an urgent account action, use the provider’s genuine contact route. We are independent of every network named here.