I just recently sold a bag to a seller across the country. It took 7 days to ship the bag via UPS ground. Now that the bag is there, UPS has made 2 delivery attempts (I asked for signature confirmation). UPS will make a 3rd delivery attempt tomorrow. I have to three questions: 1) How many times does UPS attempt to deliver before they send the item back to sender? 2) If the bag gets sent back and I have to redeliver, who pays for shipping then? It's the buyer, right? 3) Should I email the sender to see if she should can have UPS hold the bag and she picks it up? Or...am I being a nag and it's her problem. This is my first sell and I don't want to do anything wrong. Thanks.