someone changing password without confirmation code

[WJMcguffog]

I have been receiving texts from BT saying that my bt id password has been changed. i never receive a confirmation code but the password is being changed. i have 2fa enabled and every time i change my password i receive a code and they both come from the same number

[gg30340]

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How can I tell if my email account is no longer secure? | BT Help