Joined yesterday, paid my sub, can't get in, log in page shows '400 Bad Request'. Left it overnight, in case of a server problem, still no access today. Logged in successfully to Intuit.com with same credentials, went to 'Manage my account' and followed the link to my product (Self-Employed). Same result - 400 Bad Request
Tried logging in in an incognito window for cache conflicts - Same result
Am logged in on my phone, but this is not the experience I was promised! Perhaps you have no free trial because customers wouldn't proceed to paying for the service if this is the norm.
