I’m an Amazon person too.
It started with a Kindle as a gift about 7 years ago-—then came the gift cards,then the Amazon Visa,-—now the Amazon Fire.
My last 2 shipments from them were USPS and I wasn’t thrilled-—(long story).
..
On a recent afternoon, I decided to buy a new phone (Samsung S7 Edge). I couldn't find the one I wanted on Amazon (I wanted support for both CDMA and GSM), so I ordered it from B&H Photo Video in New York (free next-day delivery). From Amazon, I ordered a T-Mobile SIM card for next-day delivery, and a case, Bluetooth headphones, and car charger for free two-day.
The following afternoon, the UPS lady delivered my phone, and the SIM card arrived soon after. I installed the SIM, transferred my phone number from Verizon, loaded my contacts from a downloaded .vcf, and I was up and running. The headphones, case, and car charger arrived the next day, right on schedule.