Hi Ugh,
Thank you for sending me your contact details, and details of the line.
From what I can see, your line and broadband is with BT residential, you have posted on the BT business forum, you can find the residential forum here https://community.bt.com/ or contact the home broadband team on www.bt.com/chat and on 0800 111 4567. As the business helpdesk is not able to test home broadband lines.
Regards
Markp