People saying they got the wrong password?

Well this has happened to me like 2 times but they were when i first came here and with 3 dollar accounts, i was going first coz i was new or we went 50/50.
I give them the password and they say its wrong and i know its not and they've already changed it and all, is there anyway i can stop this from happening?

 

Recover the account, take a screenshot of the IP when you log in, post a scam report and have a mod run IP comparison on the IP you posted against the IP of the user who scammed you.

 

If i get the money and yet they still say wrong password what can i do about that? like can i like somehow video myself changing the password or make them choose the new pass via teamviewer?