See link for Automatic Compensation
Thanks but thats only for activation not for the delay caused by Open Reach having to do their bit first.
The automatic compensation is paid daily if your services are not activated when BT said they would be, if however the survey detected the delay then BT won't of sent you the activation date, which means no compensation is payable because there's no missed commitments.
BT wouldn't compensate you for paying your old provider during the delay.