Notification Letter of No / Slow Internet Connection

Hello! I work online at home and I am very much dependent on my internet. Today October 17, 2019, I was not able to log into my webpage account due to very slow and almost non-existence of internet connection. It affected my job. I didn't get paid plus deduction for not showing up in our platform. I would like to request a letter that would verify the problem that I encountered. How do I go about this? Does Cox have a specific email address for this type of concern? Please lead me to the right and fastest way to resolve my problem. Thank you!