Thanks so much for the reply, Unfortunately I was a bit worried that this might be a scam so I though I would double check.
So I just sold a phone to a buyer and paid extra to have it delivered with signature required due to the price of the item $1300, I checked the tracking tonight and the buyer has removed the signature and asked the courier to leave it by the front door. If this parcel now gets stolen from his front door after deliver am I liable and have to repay him? Thanks