plz help 20 credit consume per one samsung unlocking phone.

10/16/2018 8:04:12 PM ] Operation: Unlock
[ 10/16/2018 8:04:12 PM ] Selected model: SM-N950U
[ 10/16/2018 8:04:12 PM ] Selected port: COM140 SAMSUNG Mobile USB Serial Port
[ 10/16/2018 8:04:12 PM ] Software version: 33.8
[ 10/16/2018 8:04:12 PM ]
[ 10/16/2018 8:04:14 PM ] Checking Login and Password... OK
[ 10/16/2018 8:04:16 PM ] Ballance: 45 crd.
[ 10/16/2018 8:04:24 PM ] You have 45 credit(s) left. This operation takes 10 credits.Continue? Yes
[ 10/16/2018 8:04:24 PM ] Waiting ADB device... OK
[ 10/16/2018 8:04:25 PM ] Reading phone info...
[ 10/16/2018 8:04:26 PM ] Model: SM-N950U
[ 10/16/2018 8:04:26 PM ] Android version: 7.1.1
[ 10/16/2018 8:04:26 PM ] PDA version: N950USQU3BRA9
[ 10/16/2018 8:04:27 PM ] CSC version: N950UOYN3BRA9
[ 10/16/2018 8:04:27 PM ] Phone version: N950USQU3BRA9
[ 10/16/2018 8:04:27 PM ] Product code: SM-N950UZKATMB
[ 10/16/2018 8:04:28 PM ] CSC country code: USA
[ 10/16/2018 8:04:28 PM ] CSC sales code: TMB
[ 10/16/2018 8:04:28 PM ] Phone SN: R28J83PAQ3M
[ 10/16/2018 8:04:29 PM ] IMEI: 358505081215101
[ 10/16/2018 8:04:29 PM ] HW version: REV1.0
[ 10/16/2018 8:04:29 PM ] RF cal date: 2017.08.25
[ 10/16/2018 8:04:29 PM ] Chip name: MSM8998
[ 10/16/2018 8:04:30 PM ] Modem board: MSM8998
[ 10/16/2018 8:04:30 PM ] Security patch: 2018-01-01
[ 10/16/2018 8:04:30 PM ] Boot Warranty bit: 0
[ 10/16/2018 8:04:33 PM ] Searching Samsung diag port... not found
[ 10/16/2018 8:04:35 PM ] Waiting for device to become ready... OK
[ 10/16/2018 8:04:37 PM ] Initialization zTool... OK
[ 10/16/2018 8:04:40 PM ] Running zTool, please wait...
[ 10/16/2018 8:04:40 PM ] Start... OK
[ 10/16/2018 8:04:45 PM ] Initialization... OK
[ 10/16/2018 8:04:47 PM ] Generate and check client proof... OK
[ 10/16/2018 8:04:47 PM ] Verify proof by client... OK
[ 10/16/2018 8:04:47 PM ] Reading data from phone... OK
[ 10/16/2018 8:04:50 PM ] Rebooting to upload... OK
[ 10/16/2018 8:04:54 PM ] Searching Ramdump interface... COM17 detected
[ 10/16/2018 8:05:47 PM ] Reading data from phone... OK
[ 10/16/2018 8:06:09 PM ] Calculating... OK
[ 10/16/2018 8:06:11 PM ] Searching server... OK
[ 10/16/2018 8:06:30 PM ] Waiting for server answer... OK
[ 10/16/2018 8:06:32 PM ] Waiting ADB device... timeout
[ 10/16/2018 8:08:02 PM ] Phone not found
[ 10/16/2018 8:08:03 PM ]

credit loss 10 credit i m unlock n950u two time one time show error loss 10 credit sencond time done.but loss again 10 credit.total 20 credit.