An obselte BT phone line installed around 1998-2000. Anyway to know the install date either on the hardware socket or through records with BT. Phoned customer service they could only locate a name and email addresses btopenworld.com. I have found a BT bill in 2013 with an GB account number and phone number.
Unsure which department is best for locating legacy accounts possibly provisioning/home movers department I used to work in one.
