Had to erase my android 5.1 phone because of forgot pin, now I can't get back on my phone

[AC Question]

The phone ask for my email and password. No password I enter ever associated with that phone works. It had to be erased fro my device Mgr on my google account from my computer because the phone was not accessible

 

[belodion]

If it is a used device recently bought by you, contact the seller for unlocking or refund.