Yes ! I had a full house rebuild done recently. Overhead supply. The existing DNO termination point/meter was on a wall that was vanishing. I asked the DNO to remove the existing stuff, and provide a new underground supply to another part of the house. I wanted all this done the same day. However the DNO said they couldn't move the meter, that belonged to OvO, I had to contact them separately, and ask them to turn up in the afternoon to move the meter,
I contacted OvO, and thought it would be a good idea if they took away the old meter, and installed a Smart meter at the new position. Bad idea to suggest, it totally blew the CS droids' mind. 'Our Smart Meter team don't do moves, they only do swap outs'. Yes, but....' In the end I managed to fight my way through to someone technical, who understood perfectly what I wanted to achieve.
So, the DNO arrived in the morning, and finished their bit 20 mins before the OvO meter bloke turned up. I thought I was on track for the new supply to be up and running by evening, but the builder's sparky who was booked to follow the OvO man and install the new CU had to drop me to rush off to something else. So we carried on for a couple of days on an extension lead plugged into the neighbour's house for the builder's tools and kettle !