SM-G960U unlock not done but credits are reduced

In first time it's go to charge condition after Waiting ADB device. In second time I manually turned on then unlock done succesfully. So it's charged 10 my credits. Please refund it on my login: zsc_ifngecab

Code:

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Operation: Unlock
Selected model: SM-G960U
Software version: 31.5

Checking Login and Password... OK
Ballance: 20 crd.
You have 20 credit(s) left. This operation takes 10 credits.Continue?  Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G960U
Android version: 8.0.0
PDA version: G960USQU1ARBG
CSC version: G960UOYN1ARBG
Phone version: G960USQU1ARBG
Product code: SM-G960UZKATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R28K31LV11X
IMEI: 353309091463834
HW version: REV1.1
RF cal date: 2018.03.12
Chip name: SDM845
Modem board: SDM845
Security patch: 2018-02-01
Boot Warranty bit: 0
Searching Samsung diag port... not found
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Rebooting to upload... OK
Searching Ramdump interface... COM295 detected
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Waiting ADB device... timeout
Phone not found

Done with Samsung Tool PRO v.31.5

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Second time succesfuly unlock log:

Code:

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  UNLOCK INSTRUCTIONS:
    Reading codes using sever:
  1. Power on the phone.
  2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
    go to 'Settings'-'Developer options' and enable 'USB debugging'.
  3. Connect the phone to PC with USB cable, install drivers if needed.
  4. Select device in ADB settings.
  5. Press 'Read Codes via server' button, write your login and password in window if it will appear.
    (Login and password will be saved as default after first input and can be changed in settings.)
 
Operation: Unlock
Selected model: SM-G960U
Software version: 31.5

Checking Login and Password... OK
Ballance: 10 crd.
You have 10 credit(s) left. This operation takes 10 credits.Continue?  Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G960U
Android version: 8.0.0
PDA version: G960USQU1ARBG
CSC version: G960UOYN1ARBG
Phone version: G960USQU1ARBG
Product code: SM-G960UZKATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R28K31LV11X
IMEI: 353309091463834
HW version: REV1.1
RF cal date: 2018.03.12
Chip name: SDM845
Modem board: SDM845
Security patch: 2018-02-01
Boot Warranty bit: 0
Searching Samsung diag port... not found
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Rebooting to upload... OK
Searching Ramdump interface... COM295 detected
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Rebooting phone... OK
Unlock done

Done with Samsung Tool PRO v.31.5

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