Trade in help!!

I am experiencing an issue with my trade-in. I sent three phones on February 26th, and it appears they may not arrive on time, if at all. I received an email confirming that two of the phones had shipped, but I did not receive an email regarding the third. My USPS receipt indicates that all three are currently in transit, but they seem to be stalled. I am concerned about receiving my credits and would appreciate it if this matter could be escalated to the escalation team for review and assistance. I have followed all the required steps for the trade-in process.