Thanks for the Private Message.
I have provisionally arranged the engineer visit for 17/10 AM (8am - 1pm)
I will post back shortly to confirm once Openreach have confirmed this appointment.
Hi, speed up to 70mbps after engineer visit who found a problem between exchange and cabinet next to my house. It has been stable for two days. It's not as fast as I used to get which was 76mbps but all in all its working well.
Thanks for your help.