Thanks Harald, i received a reset password mail and now i can access to Credential Manager 
!
Do you know if i can add my past certification C_TSCM62_64 to the list of certificates in Credential manager? Or, maybe, if i can obtain some printable version for this certificate?
I know it's retired, but SAP never sends me a pdf version of my certification or a print and i neeed to prove my customers that i'm associate certified in this course.
Thanks a lot Harald! You are the only person helping out with this issues
kind Regards! Mario