Blastoidea I don't know how Best Buys customer service is, but Googles is absolutely top notch.
It feels odd giving them so much credit, but honestly I never had a bad experience working with them. Getting my phone upgraded for free also made me soften up to them a bit.
I'm sure best buy is similar, I just found Google to be very responsive in their customer service (you can have them call you or text them through the help desk)
Never used Best Buys customer service however, I wonder if you could use Googles help desk since its a Pixel device