You had until 4/15 to make the payment so if you were not ready today then you should not have chosen 2/20 .... it may not happen tonight but it will in a couple of days so expect it to happen. .
Thank you so much! I was ready. I wanted it to go through tonight. I want to be done with taxes and my concern was that because I chose today's date it wouldn't process at all and I'd need to choose a later date.