Try using your old password.
Yes obvious answer. That was what started the problem. I changed it as I was informed that my data was subject to a security breach so I changed all passwords today for my security and now this. I’ve changed my passwords many times before with no problems. It’s something BT have done looking at other posts. Thanks for your helpful answer though!!!
How were you informed that your data was 'subject to a security breach', was it by email and did you click on any links in the email?
Can you access webmail here https://signin1.bt.com/login/emailloginform
All the users on this forum are BT customers just like you and are not mind readers. They give their time freely to try and assist people such as you.
If you read through the forum you will see that the questions you were asked were to try and assist you. The answers given would help to diagnose what was possibly causing your problem.
As regards the question you appear to be asking. If you had done a search of the forum you would have found the answer your self without the need for you to feel you were being patronised.