So your time-of-filing trademark watching service  warned you that someone filed a use-based application to register a mark that’s awfully close to your mark.
You drill into their application file history and notice that their proof of use of their trademark looks like this:
In a September 6, 2018 webinar hosted by CompuMark, I presented on the very important topic of trademark watching services. Thanks to CompuMark for inviting me to speak, and to everyone who attended the webinar and asked great questions! (If all goes according to plan, future blog posts may cover some of the questions we ran out of time to answer during the webinar). For those who weren’t able to make the webinar during the live presentation, you can access a copy on CompuMark’s website (you’ll need to register on the right side of the screen).