How to change my piwik password

Some time I have problem to sing in piwik account due to password, now i want to change it but not reach to password changing option. Even I have visit this link Piwik PRO Community - Community of analysts, marketers and data privacy practitioners but still i did not find the solution.

for Piwik PRO Core Plan account please follow this link to reset password.
If you don’t remember the email address you used to register the account, please check your email inbox for our former communication.
I’d love to hear if you managed to reset your password.