Still waiting for mine.
The guy who took the original order screwed up somehow by making separate orders for the line rental and the Sky Fibre (although we have Sky BB Unlimited we still had BT line rental due to being customers before the Sky line rental requirement), causing the Sky Fibre order to automatically be rejected due to "overtaking" the line rental order.
So, we had to wait for the line rental swap to take place, and *then* order sky Fibre again.
Did that on Saturday, and the new installation date is Monday 22nd April...
Still got the same deal, though

Half-price line rental for 6 months + no installation fee + half-price fibre for 3 months