Citigo E IV won't charge

My wife has a used 2020 model that has just started refusing to charge using our domestic 13A supply. Symptoms are;

Flashes orange led for 30 secs then acts as if charge completed.

Same result with a different cable that shows initially 0.4 A then 0

Car seems to be sending the wrong signals to charge cable.

This is the early model with no Bluetooth so we cant connect an App.

The only way I can get charge in now is to leave the Ignition on and press the Chsrge button on the centre console but that is not ideal as the cae then cant be locked!

Any ideas what to check? The 12v battery went a bit low but has since been recharged and id ok.