Re: Hi, I'm having trouble starting my campaign. It says to update billing info which is done.
The billing message will diappear soon after entering in your details but never straight away. If you have already entered your billing just give it a bit of time and it will update.
If it's a brand new account it can take up to a couple of days (not in most cases) as some aspects of the account may need reviewed so don't worry about it at this early stage.