She was obviously only in to clear her locker after shielding/sick pay for so long ,she was surprised they entered her in the Christmas raffle at work remember she posted the present she got with the raffle ticket attached thanking them, surely if she was in work it would've known she was in the raffle and it wouldn't have come across as a surpriseThe fact the card said good luck and not your will be missed or anything more personal says it all and most people have a little leaving do a few drinks but I bet they have their own version to celebrate which will involve take away and the sofa