I used to have an account with Boost, during that time I had bought a pre owned iPhone 6. I then switched to AT&T after finding out the bad service with Sprint and Boost. I had returned the phone right before my Boost account was closed, but still have not gotten a refund, and this had been since March. I tried to dispute the charge with my card company as "Credit not received" and have talked to Boost customer care many times and have been told that to receive my refund they would need the return tracking number, which I did not keep. The only tracking number that I have is for when I got the phone. I also contacted UPS to see if they could provide it, and of coarse it was no where to be found. Even UPS said that Boost Mobile should keep track of what return labels they give you. I don't know what to do because that is just $116 that was lost because for some reason they need the return tracking number to provide a refund.