I had the same problem for a long time. I just got into a 401 this week, luckily.
I refreshed my browser on the registration page constantly for 10 minutes leading up to the registration time listed on these forums. I was sure to use Chrome as my browser...they have a great autofill function. As soon as I entered my name, Chrome suggested finishing everything. I had my credit card out and typed it in fast...but if you're particularly slow on a keyboard, I might suggest copying the number ahead of time so you can simply paste it in.