Yeah I had to cancel BT broadband even though I gave Sky the MAC code.Third Opinion said:Phoned Sky and they told me that although I gave them a MAC code I should have cancelled the service and had the line re-activated.
Although the date for BT broadand cancellation is the 19th, and Sky is supposed to be activated on the 20th (or so I thought - got letter saying today that it is possible it might be activated by BT before then). Anyone know what happens if Sky is activated and BT broadband has not been deactivated? For example, if BT don't bother to deactivate until the 21st and Sky comes on on the 20th. Is that possible and if so, should I get the the BT broadband cancellation date moved to something earlier like the 15th or something?

. BT will cancel your broadband account after 30 days of your MAC key being used.