Unable to access my coinbase account

Hello I have over £800 on my account and I was unable to access my account. I have changed my number recently so I don’t have any access to that and when I try to login it will ask me to put in the code that was sent to my old number and when I try to click on try another way and put my passport with the video verification I keep getting an email saying it’s not verified. I tried everything to access my account and I’m so frustrated they don’t have an email, phone number or any kind of customer support. @coinbase