I seem to be having this problem also.
I created a database with phpmyAdmin and can enter/insert data with the "insert" option/tab. I'm unable to use an SQL statement to insert data. This is not a problem where I have another hosted account.
I look at the user_privileges for myself and they are "USAGE" which means I can do nothing. Logging into mysql through ssh as myself still I can't even grant myself the additional privileges of INSERTing data.
Any idea of how I can grant myself those privileges?
As gladgladwrap noted, "pretty hard to do when your administrator/root account has 0 permissions." which is no help at all.