Don't know if it is BG, I'll check. I only know that she pays them a monthly maintenance contract and they said this wasn't covered by it.
I only just found out about it after the event and though it sounded a bit suspect.
The only other bit of info I have at the moment is that they took...
Hi
My mother-in-law had a problem with the hot water cutting out or not working on her combi boiler, which is only a year old.
She called someone out who said it needed a new part and a sonic clean to fix it, and if she had just the part replaced without the clean then it would just go...