Linking a mobile phone to your account: Disabled

Tried for several hours to do two step Linking a mobile phone to my account. Sometimes I get an email with a code. Sometimes I don’t. When I enter the code to confirm it and enter my phone number and the captcha the captcha AWYAYS FAILS. Tried logging in on my phone, W11 two different ISP’s and the PC.

Same problem with the phone number verification. I can’t add a phone number to my account because the sms code doesn’t work. Tried for hours, checked the phone number to be sure, nothing.