Hey !

You can get your EAMCET login id by calling them on their helpline numbers which are 

799564592 or 7995845619 or 8688896062 or 8688889464. 

Also , you can mail them at their helpline id 

convenerapeamcet2019@gmail.com

describing your situation and seeking them for help. 

They will get back to you with a solution.

For better help , follow the given link :

https://apeamcet.nic.in/ContactUs.aspx