Issue when create DDNS service

[muquang]

I create DDNS update user: xxxx-user01 from http://manage.dynect.net

I create first domain1.example.net

// configure the new service
$service->setAddress('1.2.3.4') // initial IP address
->setRecordType('A') // 'A' or 'AAAA'
->setUsername('xxxx-user01');// update client user (will be created)
// create the new service on test.example.com
$zone->createService($service, 'domain1.example.net');
.....

Result: domain1.example.net created and xxxx-user01 is update user for domain1.example.net

After, I create domain2.example.net'

// configure the new service
$service->setAddress('1.2.3.4') // initial IP address
->setRecordType('A') // 'A' or 'AAAA'
->setUsername('xxxx-user01');// update client user (will be created)
// create the new service on test.example.com
$zone->createService($service, 'domain2.example.net');

Result: domain2.example.net created and xxxx-user01 is update user for domain domain2.example.net

But user xxxx-user01 can not update for domain1.example.net because no right.
If I create domain3 with user xxxx-user01, domain1 and domain2 will no right...