I had a major software glitch with the charitable contributions page. Does anyone know how to get a message to tech support to tell them they have a serious bug?

When I went to update one of my donations, all of the amounts were incorrectly shifted and almost all of the amounts were in the incorrect charities.  I had to manually redo them. I found another issue with my state refund from last year, and the amount shown was double the amount I entered.