I don't know how, but I managed to lose my provisional license last night which was my only form of id on me. Normally, I would just order a new one and not go out for a couple weeks but since it's Halloween on tuesday and I have an event I would really like to go to, I have asked my mum to send me my passport using royal mail's guaranteed next day delivery so it should arrive by 1pm on Tuesday. Is this safe or is there are chance it could be lost? I'm debating going back home to pick it up.