Unable to view billing details online

There is definitely something wrong with T-Mobile website and looking at your own billing or anything else I'm able to log into the messages here so I can comment but I log into my account after logging out you know email or phone number and your password and then they want to send you a code via text message or email I do that and it says you don't have access to this in logs me right out

Have you been able to check your billing cuz I haven't been able to no matter how many times I changed the password over the phone with customer service they have to deal with technical