Related Meters

Hello - I would like to consider switching the electricity in a holiday cottage I own (IV27 4YP postcode) to Bulb/another supplier other than SSE. I tried to switch to green network but after going through the full process they cancelled the switch as they said the two meters I had were “related” and they could not just take over one of them. Is this a problem you would recognise or would I be able to switch using bulb?

You’d end up paying 2 standing charges I believe.

Why the 2 meters? Can you get one removed?