移动了CPanel帐户,现在无法访问数据库

I've just migrated a site across to a new account on CPanel and I just can't access the databases at all. The error I'm receiving is:

SQLSTATE[28000] [1045] Access denied for user

I've changed the usernames and passwords in the config and connection files, and altered paths, but it's left me stumped.

OK, panic over. The server people just responded with a "You should able to access the database now. Please let me know if you need any further assistance."

Frustrating, but happily sorted!