TESU Cornerstone stuck in my "cart"

[Jdesign]

So my cornerstone has been waived due to my SDC affiliation. This is reflected in the email exchange I've had with them and my academic evaluation. I went to register for my first TESU courses today and it's automatically trying to enroll me in the cornerstone. There's no way for me to take it out. Tomorrow is the last day for registering for the September term and the TESU offices are closed. I know, I should have enrolled sooner but I only just had an academic advising appointment the other day to finalize my academic plan.

Not sure what to do...

Should I just hit "OK" and call them Monday to have it removed? 

I don't want to do something wrong and cause problems for myself down the line.

When I enrolled/signed up  for TESU July 2018 term (mid June), they automatically added the cornerstone class. I had to go back and drop the course. Just make sure you drop it before classes begin, you should be able to drop it online.