If a domain name is locked at the current provider then it cannot be transferred. In this case it is important that the current provider removes the lock from the domain, after which you can apply for a transfer another time.
If your domain is already registered in our system, you can easily remove the lock status yourself using the Control Panel. Go to the Control Panel and click the desired domain name. All the current specifications will appear. This will also show if the domain is locked or not. To change the lock status click the on/off button.
You might also check the WHOIS register to check the status of the domain. When the domain is locked this can be recognized by the terms 'LOCKED' or 'clientTransferProhibited'