Amazing.
I've mailed mine in for past 4 phones and it usually takes about 2-3 weeks for them to even receive it. I check online via PitneyBowes smart label site
I Mailed in my 13PM on the Sept 16th the day I got my 14PM. tracking every other day shows it just got there in Irving, Texas on the 6th of Oct. in usually 4-5 days I should get text saying all is good Trade is accepted.
Honestly 8 days is just crazy time as I bring to USPS with their return label and I have had it sit there for 8 days before getting picked up. That said I get my credits in about 3-4 weeks after mailing back. As once its arrived and I receive text. I check app for credit if not I call them. In the past they have given me credit for my hassle. Ive been ATT with this # since 1997. And I constantly say that nicely when I call with any issue.