They do their best to cover the issues that users still experience, but this takes time. If you for whatever reason don't have the time or patience to wait till everything works as intended you should contact the EA support and let the developers do their job.
Anyway, just taking a closer look what they have done inbetween already, I hardly think that new customers even would notice that there are still any kind of issues with the account creation system, cause for them it should run pretty much flawless already at this time.