Purchased Pro, but not on PlugIn

Hey guys… I purchased the Pro version just last night, I got the zip file download, but I am not sure what to do with it. I tried Deactivated and Deleting the Lite version of Coming Soon, but when I reactivated the plug in its still the Lite version.

I bought the Pro because I wanted to use my MailChimp as used a giveaway promo to collect subscriptions to my page.

I’m new to code, I’m new to html, I am new to WordPress and I’m new to blogging and I am lost. My website it http://www.blackgirlfrugalworld.com and I am headed to watch StarWars now.

https://wordpress.org/plugins/ultimate-coming-soon-page/