u/IYog

I’ll admit I’m kinda new to all this.. Ordered a new phone 2 days ago through Walmart without a plan and it has been working fine for now, just an hour ago my phone suddenly locked up and is requesting I purchase a straight talk plan to activate it. I don’t really use phone plans as my family and I mainly communicate through Snapchat nd what not but is this not dumb? Is there a way to fix this