Tried to cancel SKY account today and they said that I won't be able to keep the number I've had for 20years.

When I swicthed from BT to Sky it was easy enough to transfer number, but it seems the opposite can't be donw and now SKY 'OWN' the number.

What can I do? I want to keep the number, but don't want to be stuck with Sky for the rest of my life.

Steve

contact BT on 08001218085 and request a "return to donor"

this should get the number back to BT

contact BT on 08001218085 and request a "return to donor"

this should get the number back to BT

Do you have to do it twice, 21 minutes apart then?

If it's a problem - complain to Ofcom about Sky.
You are allowed to port your number from provider to provider.

It sounds to me like a retention tactic hoping to catch you off guard and try to get you to stay to avoid changing the number.

Pretty poor tactics really...

Yes, didn't realise I had replied, late+a beer

Not so many beers tonight so I know what I am doing!!