Warning message with the "forgotten" word

Hi everyone!

I'm working as a QA engineer and I just joined a new project. I see a warning message that I don't like, but since I'm not a native speaker, I'm not sure if I'm right about everything.

We had a message:

"Thank you. In the future if you forgotten your password, you can reset it by clicking the link “Forgot my password” on the login page."

I asked to change it to:

"Thank you. In the future, if you forget your password, you can reset it by clicking the “Forgot Your Password?” link on the login page."

For some reason it was changed to this:

"Thank you. In the future if you forgotten your password, you can reset it by using the link "Forgot Your Password?" on the login page."

I just don't want to insist on using my version of the text since I'm not sure that it's correct and the previous/current versions are not.

Can someone please help me? In particular, is "In the future if you forgotten your password" correct?

I'm interested in both British English and American English.

Thank you!