Hi there. A friend attended our wedding and didn't provide a gift/card. I didn't mention anything about it but she sent me a text a couple weeks later apologizing for forgetting and said she mailed it to us. This was over a month ago and it has yet to arrive. She is very self absorbed and flaky so I wouldn't be surprised if she didn't get us anything or send a card...not sure if she would lie about it, though (?)
Is it rude to bring it up and say we haven't received anything? What is the proper etiquette for addressing "lost" or "missing" gifts?