Here is what happens when I try to create a test account via command line (ip redacted):
# /usr/local/psa/bin/domain --create testtest.com -clogin testtestc -login testtestf -passwd 4u6sEE5YPulP -status enabled -dns true -hosting true -hst_type phys -php true -php_safe_mode false -notify false -template "Unlimited" -ip xxx.xxx.xxx.xxx
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 597
PHP Notice: iconv(): Wrong charset, conversion from `ISO-8859-1' to `UTF-8//TRANSLIT' is not allowed; File: /usr/local/psa/admin/plib/api-common/cu.php, Line: 599
Customer account with username "testtestc" does not exist