For me it was the other way round. Got it sorted in the end by calling CS.
Just received my email to claim the £100, a month after connection.
It seems to have expired this morning, was working yesterday but I'm still waiting on a moving date from the solicitor and now it has gone ;( , don't suppose there are any new ones?
Or you can negotiate a better price, because your contract will be finished an they will want to try to keep you. Remember to hand your notice in 1 month before it ends, then sit back and wait for the offers to come. :)
Could you put this together online or have to call them and haggle lol ?