I recently placed an order for the iPhone 16 promo with trade-in. After placing the order, I received an email with the return shipping label. The link in the email does not work, and the trade-in can't be found. I had some issues ordering this promo online (the credit wasn't showing up). I chatted with a representative and they sent me a link to order from to get the monthly credit for trade-in. Trade-in was confirmed, is on my order receipt, and trade-in agreement signed. The original next bill estimate (when I placed the order) shows the credit for the trade-in, but when I look up my next bill estimate today, the credit is not there and there is no indication of the trade-in initiated!