Given you can only have the sky phone line and broadband if you keep the TV package, then it looks like Sky cancelled all three.
Migrating away the phone and broadband before cancelling the TV package would probably have worked better.
Is it Skys fault, or of your own making, hard to know without seeing all the converations that took place. I'm sure you did not intend to cancel the phone, but this is one of the problems of bundles where things are so interlinked