Just found this notice from LSE website:-
The original statement did not highlight the contact details...that was done by me.....UK Visas & immigration have set up a helpline to assist people with a pending visa application who are relying on a test certificate or who were about to apply with such a certificate. These people may call +44 (0) 114 207 3463 if they have any further questions relating to this issue. LSE's advice is to take the IELTS if you have not already taken your English test. We will continue to monitor the situation and official guidance issued by UKVI
Maybe helpful for some as a direct UKVI source of help.
May I very kindly ask that if anyone makes contact to share the feedback here...thanks