@andyt147 wrote:
Thankyou Keith_Beddoe for your reply, as for business user I'm self-employed so my landline being dead negates all advertising and customers with that contact number, t
A residential account is not intended for commercial use, read the T&Cs.
As @licquorice has said, you can ask for a free divert of your line, to your mobile, until the fault is fixed.