Account name changed now landline not working

I spoke to the bereavement team this morning as the landline account was in my father's name and my father has passed away. They had to recreate an account in my mother's name with the original account details. So the account is now in my mother's name and has not been treated as a new contract. The bereavement team member who handled it all said that the land-line would be off for 30mins whilst she did this.

It's now been 2hrs and the land-line is still disconnected. I rang virgin to be told that the new account was waiting to be registered/activated. 

In the meantime I have an elderly grieving mum at home with no phone. I can't contact her and she can't contact anyone especially in an emergency.

Please can someone help me to get her phone working again quickly.