Complaints about a frustrated experience to return a phone. Any help pls?

I have suffered an extremely bad experience when dealing with Xfinity Mobile to get the return label to ship back the device (iPhone 14 Pro) I purchased and got delivered on 3/10. The order number is  3731**********7964. I submitted the return on 3/21, then was waiting for the returning label for me to ship back the phone through Fedex. I didn't see anything until on 4/1 got an email from Xfinity mobile asking me to ship back the phone as soon as I can, but without the return label again. I was waiting couple days later until on 4/6 I finally got an agent to help me create an escalation ticket after about 3 hours on the phone waiting and talking about the issue. I was told to wait for 24 hours to get a return label in my email, but the next day I didn't get anything so I called again, the agent told me no I need to wait for another business day or 2. I followed up this week again on 4/10,11,12,13 and every time I had to provide the information from beginning and the phone was transferred to several agents and nobody can really help me to just send me simply a return label which I should get back in Mar. The worse part is their agents always promising to have my back, to get me a response to resolve it in 24 hours, but it still didn't happen. It wasted me over 10 hours on the phone since Apr 6th, and I tried to be patient again today, the last agent told me it should be 7-10 business days to resolve an escalation ticket, so she asked me to wait more days again. So was she saying all other agents were lying to my face or none of these Xfinity Mobile agents knows what are they doing? And also so funny, the other agent who transferred the line to this last agent promised me it should be a 5 mins process, I should rest-assured. But now, after 3 weeks from the original return request and over 10 hours on the phone with xFinity agents??? Pls, I only need a return label!