Up to dinner time yesterday (11/8) Sky BB was working fine. Sometime after that it was cut off

No warning, no notification, nothing
My wife (the account holder) rang up to be told we had been disconnected, the reason being that we had changed our phone number... over 7 months ago! We even switched to Sky talk - with the new number, and BB still worked fine.
As my wife runs a full time childmining business from home, and I have a part time photography business - both reliant on email and web sites for advertising etc. I was going to threaten them with legal action and sue for loss of earnings, but then I saw the "don't use it for business" clause in the terms and conditions
She's had a text to say it will be reconnected on the 20/8, but I've still complained as this is completely unacceptable. They turned us off, they can turn us back on.
o/t now I've finished ranting, thanks for a great site and valuable resource