Hi @Nic23,
Please post back on Thursday and let us know how things go with the engineer?
Thanks
PaddyB
Why on earth did you cancel the visit if your line was noisy? A noisy line line indicates a corroded wire/joint somewhere that is occasionally fully disconnecting and causing your problems.
You seem totally reluctant to have an engineer visit yet expect your fault to miraculously clear itself, it won't. There will be no call out charge if you have proved the fault exists at your master socket.