u/Typical-Category-128

Hello everyone, I just created my reddit account to post a question here.

I just bought a Vivint Kit on eBay with everything brand new. I looked up how to pair everything from door sensors to door locks and managed to pair everything. Now my question is, how do I add a subscription to my stuff? I went to vivint.com and clicked login to see if there was an option to create an account but I didn't see that option so I went to Google to see what the pricing was for subscription plans and found the 27.99 plan. Now, how do I add it? Is it through phone or another part of the website I'm missing?

Thank you!