WHM account creation using the cpanel api

[boy119]

Hi all,
I'm bluehost reseller.I want to creat account with cpanel API.But,I found some error.
[17-Apr-2013 16:22:16] URL: /https://whm.bluehost.com:2087/xml-api/createacct

[17-Apr-2013 16:22:16] DATA: username=username&password=1234567&domain=domain.com&plan=default

[17-Apr-2013 16:22:16] Authentication Header: Authorization: Basic Ymhvbdd




[17-Apr-2013 16:22:19] RESPONSE:
<createacct>
<result>
<options></options>
<rawout></rawout>
<status>0</status>
<statusmsg>Sorry, that's an invalid domain
</statusmsg>
</result>
</createacct>

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[17-Apr-2013 16:22:19] SimpleXML var_dump:
SimpleXMLElement Object
(
[result] => SimpleXMLElement Object
(
[options] => SimpleXMLElement Object
(
)

[rawout] => SimpleXMLElement Object
(
)

[status] => 0
[statusmsg] => Sorry, that's an invalid domain

)

)

 

[boy119]

I use the script connect hawkhost is right,but can't connect bluehost. What's the cause?