Hello, Elle!
The boiler etc had annual service three weeks ago.
Today the lad adjusted a valve, bled a radiator, and increased the water pressure, in five minutes, all told!
The system is now running like a well-oiled knock!
This Outlook carry-on is proving to be a bit of a nightmare, surely?
I think the sooner you leave them the better!
Grab your folders and run!
A pity Cerasus's advice/info was no help.
It looked promising.
One day you will look back on the recent Outlook shenanigans and chuckle, so leave your grey hairs in peace!