CS sucks
As a one woman show, ClickUp charged me $600+ in the span of 2 months because I was using the wrong email to log in. I unknowingly added my other emails as guests (which I should not have been charged for given the tier I was paying for) and when I tried to correct the billing issue with them, they said I was unable to and were completely inflexible to even offering credit for the future. I was looking into my account today trying to fix a bug with their support team, and when I saw those invoices again I quickly remembered worst CS experience of my life.