Something just doesnt feel right

[Lucien Nunes]

The SWA blue core goes into the main switch, then a grey cable loops out of the switch terminal, goes back through the adaptable box and down to the supply N terminal in the meter.

the connection method of the live... looks like a chocblock wrapped in tape.

It looks to me like a Legrand line tap, which might be adequate for the job current-wise, but it's still shoddy floating around in the box like that, with one cable exiting without mechanical restraint.

Legrand line taps