Hi mbks1981,
Thanks for sticking with us on this.
Based on what you've said, the engineer moved the services to another room. This means that the main socket is now the one that the landline is currently plugged in to and working.
As it is working and you are receiving the landline service, should you want to move the landline to another room, the £25 charge would apply I'm afraid.
There is nothing we can do regarding this.
Apologies.