LG H830 Unlock Error - Credit Loss

Hi.

I've lost 10 credits while trying to unlock LG H830.

User: zsc_BPP2sxD6

Code:

---

Checking Login and Password... OK
Ballance: 10 crd.
You have 10 credit(s) left. This operation takes 10 credits.Continue?  Yes
Searching modem interface... found COM220
Reading data from phone... OK
IMEI: 35672**********
Checking root rights... OK
Writing zTool... OK
SW Version: H83020a
Initialization zTool... (this can take 1-2 minutes) OK
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Initialization zTool... (this can take 1-2 minutes) OK
Reading data from phone... error(10 7.30100)
Elapsed: 103 secs. --> (v9.51)

---