This $100 is taken off the order instantly at the store.
$74+tax in savings after the $1 Sim kit and $25 service.
YMMV if your store participates.
The SKU they need to enter to get the $100 off Is 6359050 or 6323923
Do whatever you want with the phone and the sim card and the service, all 3 are completely unopened and unused.