What type of covering? Fabric, microfiber, leather.....?

My go-to product for ball-point pen on fabric is hairspray. Test it in a small area where it won't be seen to see the results before tackling the whole project.

This web-site may be helpful:
Stain Solutions
http://web.extension.illinois.edu/stain/index.cfm

I believe it is microfiber. I've used hair spray to get ink out years ago, will give it a try. I used an aerosol hair spray before, hope they still sell it.