My $84 iPhone SE From Simple Mobile

I bought an iPhone SE from Simple Mobile a week or so ago. They had a deal where you got $80 off the phone when you purchased a plan with the phone. I bought the phone and plan for about $90 with tax. I went to set up the phone and I wad suprised their was not service plan card / pin in the box. After speaking with Simple Mobile customer service, they told me to just activate the phone and my $25 plan would show up. And it worked, after I added the phone to my new account I just need to click the activate button on