Update on car....
Spoke to MG who claim that every "available update" that the car asked for has been installed (red flag!). Explained the whole story in that the car won't charge at the house but charges everywhere else, and that other cars charge up as they should do. I had to ask them if it was possible that an update hasn't gone through correctly and if they can remove and update the software again to ensure that the charger port firmware was included and updated correctly as it should do. Eventually got the car booked in for the 23rd February (1st available date available and with a courtesy car available as I'm hospital that day having knee surgery that day as well) but still stuck with having to sit down BP charging the car up.
Oh, also told them that the charger cables that they claimed were corroded and broken work perfectly well, he did make the comment that the cables worked there but they didn't leave them in for long because they were wet (possibly due to the fact that it was pouring down with rain that morning!)