Forgotten password
With a controlled contact channel, consult the relevant service's authorised reset instructions.
A forgotten password, a lost phone and an unexpected account change require different responses. Prepare the relevant information; this page does not reset accounts.

If a password is forgotten, check whether the contact channel remains under your control. Use the actual service's authorised reset process where one exists. Do not enter secrets through links supplied by strangers.
If a phone or email account is lost, recovering your contact channel is a separate priority. It is different from changing a service password. Otherwise reset messages may reach someone else.
An unrequested change should not be treated as ordinary forgetfulness. Record its time, message and the status of familiar access. End suspicious interactions and consult the security explanation.
These situations have different causes and call for different responses. Match the description to the question you actually have.
With a controlled contact channel, consult the relevant service's authorised reset instructions.
Recover your own phone or email access through its provider.
Replace matching passwords elsewhere and retain evidence privately.

Check access to your own email first. If the stored address is outdated, the service's specific recovery conditions matter. Opening another account does not resolve the original problem.
Do not send passwords, documents or codes to this website. For questions about this explanation, describe the situation without secrets.
Do not create a duplicate before understanding the original problem.
The contact channel held by the actual service is relevant; this website sends no recovery codes.
Not to an ordinary support mailbox. Do not share documents outside a verified process.
Protect your phone and contact access, then check the relevant account's status.